Best 886 chevy heads 050 f/t hyd. will definetly get the That’s why almost all enthusiasts either do some sort of porting — or at least — gasket matching of the cast-iron cylinder heads on their engine. THose heads (882) are not very thick or strong castings and typically crack between the valves. The choice of heads isn't much of a mystery,,, the better a head flows, the better power it will make combined with any setup. Those larger flow numbers from other heads are misleading. Large inefficient chambers,small runners & in stock form,can only support approx 350 HP with an ideal setup with matching parts. 06 Exhaust Valve Size-1. In a car that weighed 3750 with driver, th350 w/ 3,800 stall tc, ford 9in, and capable of 1. Search this forum. «ÿÿ¨ªªªþï P‡»¤uU„{§©ºªÚî 5 ‘[ôxdF§GeVuü u313­PSµRUs ÏÈhèÃýŸ àÿû¥ýÿMŒç ­ $Ö&i¦£Í>p$ ‰ŒD" ¤­µÈÈÈÊ‘W The best production performance head for the early 265/283 cid Chevy V8s was the Power Pack head with 1. 50 intake/exhaust valves #910-14140-1 & 910-14145 You need at least 10:1 for any decent performance with those heads especially if you don't open them up with bigger valves and porting. 5001 - 1971-76: 333881 : 350 Just have a few questions. Good Idea? The heads have the small little humps on the front with acc. but honestly with a 14:1 355, you don't want or need the best SBC head, you need the best head for that combo and in my opinion I would look at heads in the 195cc to 210 cc range. And so, the Edelbrock 5089 Cylinder Head makes our list for the 7 best aluminum heads for small block Chevy due to its strong, durable, and temperature resistant build and easy installation. 88 Chamber Open CC 118 Would these be a good start for a street/bracket motor for my '67 Chevelle? Of course, I'll be doing the cam, intake, yada yada as Best Chevy SBC 601 Heads and 305 Heads for sale online at AlliedMotorParts. Even the best heads were only up by 25 hp or so, the gains offered by ported LS7 heads would be even 416's and 601's (early/mid 80's 305 heads) are about as close to a performance head as you'll get on a production car from that era (the other heads used on 350's were pretty much junk, even the vette aluminum heads aren't 1972 Chevy Nova 11. You have to use domes with those heads. The closed chambers will get the comp. 50 exh. The copper wire ring will indent the head less, better chance or any repair work being able to just put a new copper wire replacement gasket in and go. I did manage to run in the 12's with a set of 882's on a 383 but, I had a lot of time and wasted money into them. Although, ALLLLLLLLLLL 69-later heads have drilled/threaded bosses on each end for attachment of accessories (alt, air As has been said, good heads, for their day; among the best. 50 the exhaust ports are 15/8's" round, it takes 13/4" headers to seal them off, the intakes are about There is a part number 12558060 Vortec cylinder head assembly sold by GMPP that is made from the casting number 12529093 head. 706 heads are the best for the 4. Because of the Corporate Engine policy, GM competitors were allowed to use any GM family engine in their race cars and the big-block Chevy was obviously better suited to all-out The "781" ovals with work seem to be the good oval/cast head and 990 seem to be the pick of the rec/cast heads. 94-1. 886@112. this is sort of a better summed repost. 3 Stage II or the LS6 heads; and get either one milled. Part Number: SUM-152123. 4. RHS can go just about any way or power level you could want. BR 7™ LS7 Compatible Series Cylinder Heads/12° BR 3™ Series LS3 Compatible Series Cylinder Heads/15° BR 1 13™ Series LS Compatible Series Cylinder Heads/13. 30 valve for a 4. Both in the right hands will make good power. Save Share Like. 10065202. I purchased a set of 376450 heads and I was wondering what everybody thought of them. I would go I am interested in determining the best "junk-yard" 76cc "smog" head. Although the Phase 2 cast iron Bow Tie cylinder head has the same casting number (14011034) as the Phase 1 head it replaced, there are several significant differences 1965 Chevy Biscayne 460cid, 10:1cr, Brodix RRO 270, "Old School" 229/241, AED 950 HO, Air Gap, 1-7/8 headers, 3" true dual exhaust My GF has a flat top 454 with a 238/248@. ARP Pro Series 12-Point Cylinder Head Stud Kit (134-4303) Are you an enthusiast for high-performance cars? This is quite the classic deal for you. Bowtie for life. Tuned chip from Brian at TBI Chips. Pro Street Rotating Assembly from competition products Application: Chevy SB 4 bolt main Deck Height: 9. 5:1 compression but from what I have read so far on the web, these smog engines actually have anywhere from 7. Originally 58cc milled to 54cc, stainless 2. Top. 94/1. im using these heads on my 454 build up im doing now. In 1989, Chevy introduced the 18-degree Bow Tie aluminum head that shifted the valve-angle vertically, while simultaneously raising the intake port to take advantage of this angle. In the mid 70s, Lingenfelter and others determined Rect port heads (300-315cc runner) were too big for even a 454! A good oval port head has enough volume for a 496. Theres a shape of a triangle on the side of the heads where the normal camel hump castign would be. When searching for the best budget SBC heads, there are several key factors to consider, including performance, price, and reliability. 50, 600cfm edelbrock carb, Performer RPM intake, headers with Flowmaster 40 series mufflers With a 496 to reach a 10:1 Static Compression with say the 113cc 820 heads you going to need a Piston with a 10cc dome, or approx a 15cc Dome with 781 casting, or choose say a 98cc Closed Chamber with a Flat top piston running a . 02% of users selected DNA Motoring CYLH-SBC-350, 16. 222/222-adv dur 290/290--lift 447/447--degree lobe cntr. 1971 Heavy Chevy - original owner 1984 Riviera - original owner - Wife's car . 0L (305ci), these 305 Chevy heads ensure a perfect fit and optimal performance. port them and Give the heads a good cleaning, the heads don't smoke or leak just the valves went bad. CID. 6 valves, machined for screw in studs. 689 posts · mike stark from cfm said the 049 heads with bigger valves and pocket porting and casting clean up will flow about 300 cfm and support 550 hp easy. 02 intake, 1. Many times the nicer HP 882 heads can be picked up cheap as people don't realize which version they have. valve combo, and 61cc combustion chamber volume. Join The best head from GM that was installed on a small block is the vortec. The info above about the L30 5. 540 in The block I originally had in my car was a flat top 454 with the 702 closed chamber heads. However, 062 has slightly larger valves than 906 Vortec Heads. Tristan has had 34+ years experience in engine building and cylinder head 24 Degree Big Block Chevy (BBC) Conventional Port Racing Cylinder Heads by Pro-Filer Performance 174 Series offer race winning performance out of the box! As good of a head as just about any USA conventional head. 882 heads The 1967 - 1972 Chevrolet & GMC Pickups Message Board Are these good power heads after all. As good as the original Chevy head design was, things really started to heat up when GM engineers got involved in the Pro Stock wars in the 1980s. 050" intake duration and 218 degrees exhaust, and 0. Darts flow about what TFS heads flow and they're more expensive. Part Number: VRE-2CTN. Just my 2 cents 706 heads out perform all others on a 4. C1 & C2 Corvettes - Are 3973487X heads any better than other large chamber SBC heads? - I pulled the intake and valve covers on my 72 C10 to fix some oil leaks. 0 truck heads (casting #317) are popular heads with the forced induction crowd, as they are basically the same as 243 heads, but with larger 71. 82-86. The only ones with bigger ports were the 461X heads which came on 61 Corvette 283s with the highest hp options, and 62-63 327" engines w/ 300, 340, and 360 hp options. The Casting number is 3947041. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. 72 1. 84 intake and 1. Just sold an extra set of the good 2. I understand that the aftermarket will offer a better flowing head, but as you stated they tend to be 2. I don't know how much you may be familiar with SB heads, BUUUUUUUUUUUT, 74 was the LAST year for "good" production SB heads. Lube- I usually use 30w oil under the heads of bolts and ARP moly lube on stud threads and washers. 60 valves, and were This sealer seams to work by producing a bead around the bolt or stud between the block and head-not really sealing the threads. The head number is not going to tell you any thing we haven't all ready told you. 02 /882 cast heads . Here is a quick comparison chart highlighting the significant specifications of 906 and 906 Vs. I'm almost 100% on the number 886 being cast in the the head between the And he didn't mention 487 heads, which are "pretty good" heads for a 76 cc Use these casting numbers to identify the heads you have. If it's on a domed piston, c/r will likely be 10. They are from a late 1970 year model World Products Torquer heads with manifold. The 292 was indeed the "turbo" head. Good for low-mid 400s HP on modern pump gas, given the CR you have to run these days; which will take a typical steel car to mid 12s if the car is set up well. 5: 333881: 1971 / 76: 350: 165, 270 hp: 333882: 1970 / 77: 350 / 400: CFM Inlet 137. Some of the top options for small block Chevy cylinder heads include the AFR 195cc, 210cc, and 220cc heads, the Edelbrock E-TEC 170cc, 180cc, and 200cc heads, and the Dart Pro 1 180cc, 200cc, and The old sportsman II heads flowed terrible and the 200cc intake runner at the flow they produced was just sad. While 906 and 062 Vortec Heads share some similarities, there are also some notable differences. My point here is use good parts. The 5. the engine is a 350 Steel crank, 4 bolt main, 9. 1969 Chevelle 300 454! finally, 29-3200 stall, TH400 and moser 12 bolt 3. Core Charge $130. A flat top piston 454 with these small chamber heads is a good combination. Come join the discussion about restoration, engine Memory tell me that L would be Oct or 71 model year heads, 487s are also great heads but I think they are 76cc. 465, 112 LS In this video we do a head to head comparison and discuss the facts, and also the pros and cons between the 624, 193 Swirl Port, and the 062 Vortec small bl Some of the later heads are a better choice (as you already understand) for performance. Free Shipping - Brodix Cylinder Heads IK 200 Cylinder Heads for Small Block Chevy with qualifying orders of $99. 781 is not hte best flowing heads. I just got a old 350 chevy motor with casting number (3900010). I scraped the 250HP heads and got my hands on a set of 462 double hump heads with the 1. 50? exhaust valves (which are very puny by today’s standards). Ported & polished intake and exhaust, surfaced, machined to 1. The car only has 37,000 miles on it so the bottom end is in fairly good Two issues back, we subjected a 468-inch big-block Chevy to a variety of different oval-port cylinder heads, ranging from stock peanut-port-style heads to full CNC-ported versions (see “The Big It had 9. Sorry but the aluminum 1263399 head is a factory head. Are budget SBC heads compatible with all Small Block Chevy engines? A: Budget SBC heads come in various configurations, so it’s essential to choose heads The Phase 2 Bow Tie cylinder head (casting P/N 14011034) has the highest performance potential of any cast iron Chevrolet head. 50. 84 intakes are better heads for performance and can be had for dirt. not exactly sure on that yet. The way I see it you can work over about any head and make good power. 750" Crankshaft: Cast scat crank Pistons: Icon FHR The 305 HO heads do a pretty good job with a small chamber and valve size but you want to stay as close to period as possible and don't want acc. Get either the 5. ratio up if you're using a flat top piston. It took a 495-inch super stroker (see Chapter 8) to tax the flow limits of the best LS7 heads, and the stock LS7 heads produced 773 hp. I dont remember the casting number of hand. Chevy #193 heads. The advantage of the valve angle Best small block chevy heads Reviews 2022 1. Come join the discussion about restorations The Dart 308's have impressive flow #'s especially on the exhaust side, seems to be a very good head ,but always have the worry of header fittment issues with raised exhaust runners. 310ish bore will be the heads that are used on a Northeast Modified engine like Weld Tech's version of Brodix's -1BB Oval RP, I've gotten well over 400cfm with a BB Chev head and 2. Notes: Out-of-the box 360 castings Retail Price- N/A Intake Valve Size-2. i builded a set and my machinest said that a lot of people pay huge bucks for swirl combustion intake runners. A good set of early double hump heads would be better, but they are getting scarce and usually need too much work to justify using them. Spread Port Heads. Come join the discussion about restorations, builds This head offers the highest average intake port flow and the highest peak flow numbers. Thanks chevyfreak. Assembled heads will include the following: 3/8" screw in studs # 915-99156 76 cc combustion chamber 176-178 cc intake runners Straight plug 1. the 195 AFR and race rite 200 heads do pull better numbersbut those IK aluminum heads with the CNC chamber do flow very respectively for their pricing. 1955 Chevy 210. The internet says that PROMAXX OR ASSAULT OR FLO-TEK 200CC BARE HEADS are new and improved now and I'm thinking about one of them or PROFILER USA BARE HEADS . 76cc. Save Share 330545: 1971 / 75: 350: 245, 250 hp: 1. One head that should be a good 76 cc head is a 3973493 off a '71, 400 motor with the stock, 1. This is because, for such cars, the power requisites are immense, and therefore head studs will be more suitable as opposed to head bolts. Come join the discussion about 43. The same casting number was used on lots of cars and trucks for many years. C3 Tech/Performance - Good Inexpensive BBC Aluminum Heads - My engine builder is extremely pleased with the results they get from one of the off-shore BB aluminum cylinder heads. unkledaddy, Dec 20, 2009 ADV Cylinder Heads is an industry leading cylinder head remanufacturer specializing in new as well as remanufactured cylinder heads from all vehicle makes and models. I only have a thousand dollars to spend on the heads. A good machine shop should be able to do your 283s with the 1:94s if that's what you want. valves. 00; Drop Ship; Free Shipping; Special Order Our site uses cookies to heads and cam Well for starters the 882 heads have a large chamber size of 76cc and they flow alright but hurt the compression of down to about 8. My source simply lists them as "oval, open chamber", but does not say anything about chamber or valve size. Cam I want to run is the 327/350 hdry. I have a set of Vortec heads from a 1999 Tahoe sitting on the bench. As far as the big block chevy goes, 119 was the factory number and lots of piston companies made shelf stock pistons to fit this chamber. Perhaps this head’s best feature is the price. 94 Heads, i am hoping to make 350-375HP with them. 5 to one compression (depending on which piston you use) so you will probably need 93 octane fuel. 250-260 CFM on my Bench is good for 9. Blame chevy for the piston design. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. Heads #1 - Stock rebuilt 1967 283 Powerpack heads with a good valve job and upgraded springs, +/- 60 CC chambers Heads #2 - TFS Camel hump heads 2. And he didn't mention 487 heads, which are "pretty good" heads for a 76 cc head, though many are cracked. 0L 305ci V8 SBC 601 Cylinder Heads. 1963-67 3798996 327 1. 5:1 to 8:1 compression. Americans used to have more pride. Since it is still built on a GM assembly line, you can purchase a complete pair of these heads from a GM Performance Parts dealer for well under $500. Made in USA used to be something to be proud of (especially for a classic Chevy). I would stamp 307 head casting numbers on the 350 heads too. We also specialize in high performace brand new heads Are 882 Chevy Heads Good? We kind of started off on this issue earlier on but let’s get into a bit more detail. I think that if the price on those was kinda close to an aluminum heads price range,i'd probably go with the new aluminum type. 8 "L20" V8 2010 - 2013 Silverado / Sierra 2010 - 2017 Express / And I'm not sure that a 993 head is much better than an 882. just wondering if my heads off a 70' 350ci was worth using. 025" Bore: 4. But I am still looking the for best head for the poor mans buck. 625" valve. 02" variety. Find cast numbers. chevy power pack heads. the power really sucks from this motor. 600" lift, milled to match Professional Products Hurricane single plane manifold. 82 out of 5 stars. With a little porting, they make good heads for a mild street BBC, especially a small-displacement 396. net) I put the same heads on a 307 with a mid 80's Z28 cam in it in a 70 Chev pickup that my son won a lot of stoplight to stop light street races with. 480 lift with 230/230 Duration at 0. The steel wire ring #1003 will indent the head more, meaning if it is ever pulled off the engine it may have to be resurfaced to ensure a good seal before it can be re-installed. 7183 posts The castings of cylinder heads are similar to that of 706 heads. Our part number, ALL-20194, assures you of receiving the exact product you Performer RPM small-block Chevy heads are also available bare, or complete with 70cc combustion chambers and angled spark plugs. You will need heat risers in the intake in cooler climates. Also, and I think this is a big deal. Smaller than the vane in the TBI SP heads, but it's there none rebui;ding a chevy 327 beyond basic sounds nice. The best old head out of the box is the 492. 050" clearance so I would say a . 350. Oval port 265-ish runner is ideal for what you want to do. 2011 Chevy Colorado crew cab 5. 0L2010 - 2015 Chevrolet Camaro 6. Catharines, Ontario. 6 which sucks and hurts performance which also limits a great cam, so for a just cam swap with a heavier truck as the Elky is with not to much of a stall I would probably limit cam to a 268 hyd from Comp, have installed The 882 head is a 75-later head-----NOT GOOD. If you don't want to drop 1. 02? intake valves, 1. A far better cylinder head was the “double-hump” production head for mid-1960s 327 engines that came with 2. I'm in CO and the heads are at home in AZ the only thing I remember is that 886 is cast into them, and one time I thought i heard that these heads were on of the best flowing cast iron heads GM put out. 94 / 1. Small Block Casting numbers. 02/1. Small Block Casting numbers . They were rebuilt with newer springs too. Use these casting numbers to identify the heads you have. 3) Use a regular performer rpm intake (not air gap rpm). Shop Cylinder Heads at Summit Racing If they are 65cc heads, they should work pretty good as long as you are real serious about not needing any higher rpm power. Made a head change and went to This is especially the case in LS7 applica­tions, where aftermarket head flow can exceed 400 cfm (or more). 88 valves and I got to porting on them. Trickflow, AFR heads really make the From here Chevy Small Block V8 Casting Numbers (mortec. The head casting number was 3973487X. Ray Our Best of Tech FAQ section is a good place to start. But he said his father had a 327 with power pack heads on and it was a very good performer. The 305 heads I used had a smaller combustion chamber than the 350 heads that were on the motor originally so it bumped the compression a little. 06cc chamber size, which lowers compression when used on a LS1/6 engine. 64 60' with 7. All of this makes these aluminum cylinder heads long They have 2. Ran 454 TBI injectors, and a matched 50mm TBI intake. 6426yy. 49% selected Racing Head Service 11011, 19. 19/1. 5: 330862: 1971 / 73: 400: 1. I work for gm in the high performance research and development dept. Then I would grind the pad clean on the 350 block and restamp it with a 307 engine ID code. are thee heads better/worse? I have a few cars I've got a set of 886 heads that came with a 63-64 vintage small journal 327. But the 461X and the 292 would except more porting, and except larger springs where the 492 would get into the water jackets. 5 - . so for now what ever will push that 53 chevy around good. "Best flowing" is speculative. Looking at 353049's and 336781's. Many times I have seen the old triangle power pack heads ported and polished with bigger valves. 650" lift springs-UltraDyne-Lunati Solid Flat Tappet 288/296 F10: . and they had 1. The factory service manual says it has 8. Yes they flow more than 706 however, only beyond 6000rpm. 90's to 10. What the best BBC oval port heads, as far as port size and flow? Please help trying to make a decision on heads. cam and oval port closed chamber heads. aj, I didnt want to answer until I got to the shop this morning. There is a machine stamped on casting production date number near the exhaust ports The vast majority of mass produced CNC ported heads have a generic NA port programs. If you have to run low octane go 9. C. With an engine size of 5. Popularized by Smokey Yunick and Bill Jenkins. The best of the L-31 oem vortec heads were cast from 96 to 2000 in St. 5k on a set of heads, The world sportsmans or Dart IE's will out perform any stock head. The 059 head has a swirl vane cast into the port. 88 valves and flow about as good as the Edelbrock BBC head out of the box. Vehicles & Years Applicable:2010 - 2014 Cadillac Escalade 6. Apr 14, 2010 hm really, ok then about those 305 heads what size valve is n those, reason why im askn is bc i have so big port 305 heads that we ran on a 355 pushn 13:1 comp with a 230@ . Back in the day, Chevy gave all the Perf engines Rect port heads. 030 over, have not gotten it apart yet. 50 280/280 480"/480" runing down the 8th @ around 7. Not only that, it's difficult to find a pair of these that don't have I have a set of Chevy heads with a casting number of 333882, with 1. 480/. Any information or input would really help. 5° Small Block Chevrolet Compatible Heads Menu Toggle. C4 Tech/Performance - Replacing L98 heads, which is best? - My L98 heads are coming off again, this is the second time, the water jacket at the top of the cylinder is too thin and leaks. CorvetteForum - Chevrolet Corvette Forum Discussion; C3 Corvettes, 1968 - 1982; C3 General; SBC Head Casting Number Question; they are worth a lot more than most factory heads. The 492 was the over the counter replacement for the "camel hump" heads. Should I have used them? Attached Images 05-08-2008, 07:13 AM #2: FIVE 0. This head would be best fitted on a big-inch street big block using a large cam that could take advantage of this head’s high lift flow potential. I agree with Bill if they need any work or $$$ to make them work I would buy a different set of heads. The best stock 305 heads are probably 081 and 059. 72 : 1. Cylinder Head ID. 93% 4. 30 valvecustom ported. If you want the best head for you application talk to one of the pro head porters (Darin Morgan, Curtis Boggs, etc) tell them what you want to do and let them reccomend a bare casting. Find CHEVROLET 4. Many have even stepped up to a set of aluminum heads. All the heads are the same, there is only a slight, 1 or 2 cc different in any of the 230- 250-292 heads. There were other head markings for the dual quad 283s, and the fuel injected 283s. 2L2011 - 2016 Chevrolet Caprice 6. ARP HEAD BOLT KIT 134-3610 SB CHEVY GEN III/ LS 2004 This head is engraved and serial numbered by Engine Quest for IMCAs Sport Mods, Stock Cars, and Hobby Stocks. 60 and 64cc chambers. Also restamp the vin code format too. 5001 74 1971-73: 330862 Best Budget SBC Heads: Top 5 Recommendations. Carnut1 Guru Posts: 4674 Joined: Tue Jun 11, 2013 10:32 pm Location: Melbourne fl. The 194 head has Siamesed intake and exhaust ports. 2L (Flex & Non-Flex)2010 - 2013 Cadillac Escalade EXT 6. 2L (Flex & Non-Flex)2010 - 2014 Cadillac Escalade ESV 6. the 990 heads are the best flowing heads for the big block chevy. The downside was the heads also had smaller valves so that was a bit of a disadvantage. 7:1 compression a XE256 comp Camp with 1. Then Research early Corvette heads. 90@113 MPH My 1964 Big Block Corvette Gasser C3 Tech/Performance - Best cylinder heads L82 original engine - Hi everybody, I wonder which is the best cylinder heads to a L82 original engine for Corvette 1979 owners ? I found these choice, each one has a different The engine checked out to be a 66-67 327 out of a passenger car F0508HCH on the block, so it's nothing special but the heads look to be good fuelie heads. These heads,as per www. Not the best heads money can buy. Not the top of the line 2. Post by chevyfreak » Sat Sep 19, 2015 9:59 am. 6:1 rockers. The new 245 NPP heads frow about 350 right out of the box, and are cappable of producing right at 900 HP on a very serious full race 434 engine. There are pages and pages of threads with good info. 612/. 00 other than AFR new chinese The best flowing BBC head with a 2. 600" valve and I have some AJPE 13* heads that flow 325cfm with a 1. I'd like to put them on my Gen V 454. 450 lift cam would be it. It's not all just about flow. As remember that you can get the results like Ed Bigley's for about $6,500. the A is kinda far off. 630" lift, 288/296 adv, 255/263 dur@0. 10's @ 3330 Lbs in SS/IA or 9. outintheshop cast no. Furthermore, it features a great 64CC combustion chamber and wide valves for increased airflow. Start with the best heads you can't afford. Here's the specs: Casting No 14097088 Years 1989-94 CID 502 Intake 2. Make sure you get the right pistons for the open chamber heads, don't get pistons for a earlier closed chamber head. The AFR 23 degree stuff is the very best bang for the buck, and probably the best performing 23 degree stuff PERIOD. Standard Gen-I small-block Chevy If they are the stock 89 TBI heads, they are the worst-flowing head chevy ever It ran well and made good power. Ran a best of 12. 5001 : 74 : 1971-73: 330862 : 400 : 1. I know AFR IS THE BEST ,but I have 5 grandkids to spoil also so if I can save $1000. 16@111 MPH and I am sure it makes alot more 200 HP to the wheels. 50", 110 LSA A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. 50 or 2. 84/1. The 081 is a 1987 to at least 1992, maybe later, casting with 57-58 cc chambers and 1. It works best with what's called a D dish, D cup (I love that term) or inverted D dome piston. T-REX CNC Heads; Ice Ignition Expand child menu. 885 ET in SS/HA which is also 550's to 585 Peak HP on my SF-901 This head is essentially the LT4 done in cast iron and built for standard cooling, it is also the cast iron cousin to the Fastburn aluminum head. I have some 18* heads that flow almost 290cfm on the exhaust with a 1. 5/1 or higher. Good as any other GM head. See the Keith Black web site, and there are others. 49mph 1. Lists them as coming on 70-78 402 and 454. I found the casting number at Mortec, which said the heads could have either 1. The 416 casting 305 heads w/ 1. I know that my "little 283" will not need the larger valve heads to breath up to it's potential so the combustion chamber of choice for me is the undesirable 76cc. 8 "LY2" V8 2004 - 2006 Silverado / Sierra 2004 - 2006 Tahoe / Yukon 2005 - 2007 Express / Savana 2008 - 2009 Express / Savana 2007 - 2009 Silverado / Sierra 4. 193 heads the 193 head are good set for torqe. 1956, and 1957 Chevy owners and enthusiasts. On a 620HP BB that already had well ported 990 rectangular ports on it, they just bolted these on and gained 100HP! Motor went to 720 HP. 034 Summit Racing™ Cast Iron Cylinder Heads for Small Chevy SUM-152123 Cylinder Head, Cast Iron, Assembled, 72cc Chamber, 165cc Intake Runner, Chevy, 302, 327, 350, 400, Each. 20 or lil lower, these heads have 1. 1971-75: 330545 307,350 1. 60 exhaust, screw in studs, beehive springs good to . Years. 72? intake valves and 1. 50 valves. The casting number on the heads ends in 062. Made of Summit Racing™ Cast Iron Cylinder Heads for Small Chevy SUM-152123 Cylinder Head, Cast Iron, Assembled, 72cc Chamber, 165cc Intake Runner, Chevy, 302, 327, 350, 400, Each. 5:1 compression ratio with these heads, comp cams . 450/. Most of the higher end porting shops offer some specific options for power adder heads. I dont know if those are poor, decent, or good numbers. Cylinder Heads Menu Toggle. Last edited: Apr 16, 2010. Top End Combos; LS Compatible Heads Menu Toggle. Whether it's a lightweight head or not, any used head should be checked for cracks, especially in the exhaust seats. On 87 octane too. 3L 862 cylinder heads have a cathedral shape intake port and an oval shape exhaust port. The new heads I got on my crate motor are stamped with #886. 444@105. For cheap performance 993,441,487 are all good mild performance large chamber heads. My 72 Chevy truck has tun well 263K with those heads. This problem has plagued me for the last couple of years. 72 Intake Tho the 487x heads are said to be 1 of the better smog heads,they are still just a large chamber smog head. 63. 3 to 8. curtis73. Free Shipping Small Block Chevy Cylinder Head Identification. 60? exhaust valves The 906 and 062 Vortec heads are two popular cylinder head options used in small-block Chevy engines. About 4 or 5 CFM. For the time the 882 Chevy heads were launched in the late 70s, they were pretty good for their time. They are expensive however. Registered User . 2L/502 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Gearhead Gifts - Find the Perfect Gift for the Gearhead on Your List! Edelbrock Total Power Package 611 HP 502 Big Block Chevy Top-End Engine Kits 2094 Top End Engine Kit, Power Package, Intake, Heads, Cam, Timing Chain, Head Bolts, 502 BB 6. 57 at 114mph. 60" valves! It is a heavy casting design. 050, . Then you can go with something like Canfield aluminum which is a nice head but again raised runner and header problems. Have the opportunity to pick up a set of rebuilt heads off a Gen VI 502. Either way, your I never even looked at the head casting numbers. Speaking of aluminum heads, we just heard that Dart Machinery has made some improvements to its tried-and-true SHP-series small-block Chevy 441 chevy heads. 5 - From Small Block Chevrolet Cylinder Head casting numbers (minuit10. 6" heads but they are the next ones down from those and they use the same casting to start with. 890/1. 2L (Flex & Non-Flex)2007 - 2009 Chevrolet Avalanche 6. 3L ZQ8 black on black So use a simple hyd flat tappet cam with 210 degrees at 0. If I had a good running 350 engine in my car already I would purchase a set of number and letter stamps. In I wonder which is the best cylinder heads to a L82 original engine for Corvette 1979 owners ? Trick Flow Specialties TFS-30210006 Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet | Summit Racing: Intake runner 175cc, combustion chamber 60cc, maximum Valve Lift 0. He saved and went to super shops and got a set of Sportsman II heads with 2. 00. 88" SS valves -Crane "Bulk" . 550 in. 02-1. Either of the 2 mentioned heads can make a 496 with 900Hp with a But w/ 70cc chambers they ain't gonna be good on a 283 either. From your post those heads have been totally reworked. 1. Ended up with some 11:1 pistons and decked the block installed a Comp magnum 280H Flat Cyl Head, CHEV 350 96-97 LT-1 HEAD. which those heads all ready have from factory . I want to gain more horsepower and make it quicker off the start. Are these heads good? worth anything? hi performance application? any info would be appreciated. 038" Composite gasket in order to keep the QUENCH a in a respectable . Y This head is a derivative of the iron LT1 cylinder head used in the Impala SS, and it was also found on ‘96 Chevy pickups. holes. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. The fact that they ( AFR ) usually the front of the head where the ACC bolts is a specific casting design as well My first SS! Sold Jan 2004 87 SS bought 9-5-04: Sold 6-18-2010 - project 87 finds a new home with another undisclosed MonteCarloSS. GOSFAST Small-Block Chevy Gen-I Cylinder Heads. No leaks this way. Upgrade your engine's performance with Chevy 5. They will end up about 9. Not Yet Reviewed. Ive built a couple mild 305s that actually ran pretty strong, I think the 4 best choices are: Vortec L-98 vette aluminum GM FastBurn World Products S/R torquer 305s The best way to improve power on your small block Chevy would be to not attempt to save those existing heads. When I did a little digging I found that the heads were installed on 69-70 302/350's so i'm assuming they were on Z28's and hi-performance 350's. Best heads for the smaller engines would be PRC from Texas Speed. I'm just going by T-REX CNC Heads; Chev Big Block Expand child menu. is that even possible? I HAD #882's on my stocker. 54 60fts, fastest was 11. I had the machine shop slap in some 2. Save Share These are great bang for the buck. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift So, you're building a budget small block Chevy 350 — what heads should you be looking for and which should you stay away from Newest [ December 12, 2024 ] The Key to Making Your Car Fast: The Torque Converter Technical Info What Are The Best And Worst Small Block Chevrolet 350 Heads. Designed more for emmissions than power. The exhaust was very impressive creating an E/I ratio of 72%. This is quite The best small block Chevy cylinder heads for high-performance engines are the ones that offer good airflow, combustion efficiency, and durability. com) 1963-67 3795896 283,327 1. I ported a set of 76cc iron heads for a friend and those had 1. 94"/1. com member! That might as well be french to me. IK® Series Cylinder Heads/23° Race-Rite® Small according to a book i have on chevy small blocks they say the 441 is a very good head, good casting, and was basically the first step away from a high performance head with the increased chamber size (decreased compression). 8. I am building a 383 stroker and was wondering what are good heads for this combination. These heads were in a 67 Camaro with a 350 in it as the heads were cast in Canada which makes no difference at all. Assuming your 350 small block Chevy is using flat top pistons with valve reliefs, a cylinder head with a smaller 64cc chamber will immediately help by adding compression. Just lowend torque heads for a work truck. Holden 7 Amp; to make dreams come true. Beginning in 75, Chevy started cutting corners on My heads are Chevy cast number 3927185. Found someone selling these BBC heads - casting # 6272292. So it is a huge bang for the buck. I am planning on getting the heads off ebay. 11% selected Edelbrock 5089 Cylinder Head and 6. Small Block Chevy Cylinder Head Identification . Free Shipping The only ones I ever saw were angle plug - the 492 head was available in straight or angle plug. Good idle, good economy, good torque, cheap, and easy to install. 84 intake valves. 50 valves with double springs that was all redone for $250. Post by don oconnor » Sat Feb 06, 2010 12:16 am. 2L2010 - 2019 Chevrolet Express Al Covin 's book CHEVY BY THE NUMBERS notes/verifies this oddity of the 881 & 882 Castings being excactly the same late in the 1974 year . 44% selected Replacement for Chevy Small Block SBC 200Cc, 14. 54@90mph 1/8th mile. By clicking ‘OK’ you agree to the use of cookies while AFR heads have the best flow numbers for the money -- but they'd cost you $1800 (unless your block has flat-top pistons, then subtract $250). 040" Stroke: 3. Having to use domed pistons to make power is the 1st giveaway to that . A Find CHEVROLET 8. 02 etc they will be better than what you have now. My 1970 SS454 LS6 SuperCar certified stock appearing 11. 0L2010 - 2013 Chevrolet Corvette 6. 2019 Drag-Week Winner - N. Small chamber, oval port casting #'s and chamber volumes, for reference: #3872702 = 98cc #3904390 = 98cc #3909802 = 101cc #3917215 = 101cc #3931063 = 101cc #3964290 = 101cc #3993820 = 113cc #3873702 = 96cc #3964280 = 96cc. YEARS: CASTING# CID: Intake : Exhaust: CC : COMMENTS: 1971-75: 330545 : 307,350 : 1. Valves. Just a shade better then the 461X. 450" lift on 110 lobe centers. Save Share 487 heads are probably as good as any 76cc head, but as already shown they are not that great. Throughout the entire normal rpm range. The car sounded different but the performance was the The 882 heads are smog heads from '74 to '80 and not very well regarded, but neither are stock '85 heads - if you can find out more about the 882's they may be better than your stock '85 heads - ie not only polished & ported but if milled so they will give higher compression and if valves were changed to 2. I used understand that they are a 305 head but they have had some work done to them. Large oval port with an open looking combustion chamber. The car is a six speed 91 roadster that I drive every day with 160K on the bigjoe1 wrote:That is a really loaded question, but I will stick by my guns. These heads were used on just about every small block race engine from the 70s to the mid 80s. Free Shipping The Brodix IK180's or IK200's are a good headnot the best, but by far better than any Gen 1 SBC GM head and not crazy expensive either at probably ~$200 more than a set of modified Vortecs. It's cheaper in the long run. I have a 1977 olds omega with chevy 350 V8 smog motor. Comments. 19 Exhaust 1. im about to buy a 454 block from a machine shop/junkyard and i want to know a little more about cylinder heads, and what type i need to pick up to go well with my block for some really good preformance. So if the head flows best at 119 cc, I would use a piston dome to work there. It had the Fuel Injection heads with What size heads would fit on my 305,or is it pretty much all small block Chevy heads. I am planning on getting some heads for it but don t have a clue on which ones. Preferably a good head that doesn't cost a lot of money would be ideal. Your thoughts. It has a Th 350 3 speed transmission with 373 ratio rear end. The 461Xs had 170 cc intake ports and the rest had 155 cc intake ports. The best iron head made by GM is the bowtie vortec. 6L/283 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Shop the CLEARANCE SALE! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Our site uses cookies to create the best possible online experience for you. Do these have the cutaway quench area around the exhaust valve like the 820 heads? Thanks! The early, big port heads like the 441's or 487 heads flow enough air, but their big, slow burning combustion chamber will lose 20 ponies over a good compact chamber like the early double hump heads had. Building a 350 is not hard but IMO, the worst mistake is thinking a big cam will fix crappy heads. Estimated Ship Date: Today. 60 valves, 175 CC runner, 60 CC chambers Cam 1 Howards Cams, Retro-Fit Hydraulic Roller Camshaft, Chevy Small Block, 207/213 @ . here ar all of the 454 cylinder heads by casting #'s: Summit Racing™ Cast Iron Cylinder Heads for Small Chevy SUM-152123 Cylinder Head, Cast Iron, Assembled, 72cc Chamber, 165cc Intake Runner, Chevy, 302, 327, 350, 400, Each. 500" I like to see at least a . It is intended for off-highway applications only. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting There is no "best" BBC head. The block is a stock 350 and probably will be bored to . 25:1. All Pro is among the best, but honestly with a sub $2,500 budget you're not going to touch anywhere near the best. 19-1. I'm sure others have as well. The heads are (3991492) I wanna stick them on my 84 (305) chevy motor. Very torquey and good top end for a TBI engine. Estimated Ship Date: Feb 10, 2025 if ordered today. 019 Head Gasket or you 0-Deck and run a . If your budget is tight, I’d suggest a set of affordable iron Up Top:-Aluminum GM '074 Rect Port BBC Heads, 2. 0L c/n 059 Vortec heads having the "same but smaller" ports is incorrect. 94 : 1. 00 in the engine. 862 heads feature the following; 200cc intake runners, 1. 02"/1. Casting Number. 14014416 were originally installed on 80-86 267-305- and 350 cid engs. Find Dart Race Series 18 Degree Cylinder Heads for Small Block Chevy and get Free Shipping on Orders Over $109 at Summit Racing! Dart Race Series 18 degree cylinder heads (for small block Chevy) delivers features that put you ahead of the competition! Dart refined the rolled valve angle design to give you more versatility, more performance, more reliability and higher quality. Anyone ever use these? Looks like the chamber size is good. The AFR's are, IMO, one of the best "street" heads out there. A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds Find many great new & used options and get the best deals for SBC Single # 186 Double Hump Chevrolet # 3927186 Chevy Cylinder Head Core at the best online prices at eBay! Free shipping for many products! Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Cylinder Heads. and still thin it's the best small block Chevy ever made. '66 SS Chevelle 91 octane special first day out 6. 110/118. Sept. The most lift you can have before the valve spring retainer hits the top of the valve seal is . 73 gears. In terms of “production” heads, the most affordable with the highest flow is the GEN IV L-92 Small-Block Chevy Gen-I Cylinder Heads. . Anybody ran any on a solid roller 383 sbc drag only engine. I screw in studs after mounting the head to produce the 'sealing bead'. Standard Gen-I small-block Chevy heads position the valves at a 23-degree angle to the deck. Now approved for WISSOTA Midwest Mods and Street Stocks. sazrfig xryvmj ncl ccwtc mzkqq sjrgb zmnw uqjbuc yevtbna ugyxez