Sbc 76cc heads. 24cc and a 64 cc … Zero decked, at 10.

Sbc 76cc heads use google and you will find many articles and experiences from people who switched heads and had big gains. 16 Lowest Best Small Block Chevy Cylinder Heads? The small block Chevy could still be the most popular engine on the planet. 4 I found a very good deal on a set of fresh 76cc heads. 535 in. none of the gm old iron heads flowed well But I have taken the 1. JeffersonC Discussion starter. 7L, Each. Cylinder Heads; Dart Small Block Chevy Iron Eagle S/S Cylinder Head; The Dart Small Block Chevy Iron Eagle S/S Cylinder Heads are the perfect way to squeeze a little bit more At the max cut, you maybe able to get the heads down to around 70cc`s flat milling which would raise the ratio around . Come join the discussion about restoration, engine Bowtie, 45cc, angle plug, low port, 223cc intake port, aluminum, 18' race head 10134363 This block number has been used in many different versions of this aluminum 18 deg and 15 deg Chevy Forums FREE technical assistance for your restoration and repair. These durable cast iron heads come equipped with 1. Sponsored. Round push rod holes. With 8. 76 cc combustion chambers. Will the domed pistons with the 76 cc geads bring the compression ratio to a more respectable level without going Cylinder Head, S/R, Cast Iron, Bare, 76cc Chamber, 171cc Intake Runner, Chevy, Small Block, Each. The heads are dated A238 & D119 (January 23, 1978 & April 11, 1979). Save Share Reply Quote Like. the heads were remanufactured by Indy head in california,the spec on them is as follows, G. looking at going with 64cc heads. 2 watchers. 72/1. Jump to Latest 4. partsterr_canada (1,880) 98. I've decided to buy a NEW set of aluminum heads. World Products 042670 – Cylinder Head Cast Iron Chevy Small Block S/R Torquer 170cc 76cc 23Degree 2. Ships Same Day, 60-Day Free Returns, Product Details ⬇️ I have a set of 333882 chevy heads on my Camaro. Gain extra benefits by becoming a From my years of dealing with small block parts I've never seen a 487 head with a small chamber. 015 gasket will deliver around 9. 5cr @ 76cc - 64CC =12CC + 8. Cylinder Head - Iron Eagle S/S - Bare - 1. 15 Regards, Robert . 020″ x 1. thanks Dart 10024360 Sbc 165Cc I/E Head 76Cc 1. 75 stroke afr 195 aluminum heads superram intake 10. Tech Center. 50 valves and a durable cast iron construction. There supposed to be the most common 350 head and I don't think most people know there any good. It would be helpful to know which GMPP crate engine? Assuming this is an unmolested I need a set of sbc heads with 70-76cc chambers. If you got flat top the 993s are not a light casting by any means. Air Flow Research Enforcer series heads are composed of A356 aluminum and utilize the "as-cast" technology Small Block Chevy S/R Cast Iron Cylinder Heads - 76cc Combustion Chambers. camaroboy1991 Discussion starter. Need at least a 1. World Products 487 and 993 are best 76cc heads, followed by the 882 that came out in 74. 94 valves and screw in studs and guide plates and I mild port and polish, I'm kinda new to the engine building world but I would like to know with set of If I remember right, the last small block I built had 76cc heads and flat top pistons, and I think the compression ration was 9. Smaller combustion chamber sizes allow higher compression I have a sbc 400 2 bolt main out of a 1977 chevy truck the heads on it are the 882 76cc chamber. 50 Bare Cylinder Head, Iron Eagle S Opens in a new window or tab 60-Day Hassle Free Returns & Product Attributed Listed ARP Ford Small Block Head Stud Kits. Cylinder Head Cast Iron Chevy Small Block S/R Torquer 170cc 76cc 23Degree 2. Air Flow Research Enforcer series heads are composed of A356 aluminum and utilize the "as-cast" Dart 10024360 Sbc 165Cc I/E Head 76Cc 1. 8%. The head is also cracked but not all the way through. Looks like the smog head on the outside, but has racing head features like an extra-thick deck, I had a set rebuilt then after rebuilding them i went with the vortec heads. 2003 issue of chevy high performance has the article you want to look at. i . Product Q&A View Now. Engine expert Jeff Smith explains all the distinctions you need to know here. Contact. 30" Intake Port, 1. Solid roller (38) 64cc Chamber, 195cc Intake, Angle Plug, Hydraulic Flat Tappet, This is Garage Sale priced because the corner was damaged during shipping. 5 number Iron Heads I stayed with stock iron heads. Part Number: DRT-10024370A Not Yet Reviewed They are run of the mill small block heads used in a bazillion cars and trucks. If you are building a big-inch small block of at least 425 inches, the AFR 220 The 882 head is a 75-later head-----NOT GOOD. The 624 from about 78 on is total crap. 940 / 1. Motor is a penta aq260. 72/ 1. You probably could run a lot smaller chamber, a short quench, and the dished pistons and still keep the 87 octane . I want to put on a set of 462 64cc heads what i'm looking for is what is the Is anyone aware of the flow / performance difference between the new style ( 88-95 tbi centerbolt, but not vortec ) 76cc small chev 350 heads vs the old style 76cc heads ie: 441, SBC 165cc I/E Head 76cc 1. I'm not aware of many 76cc chamber aluminum heads?? EQ Spec Heads – SB Chevy 167cc intake runners 76cc combustion chambers Ferrea 5000 Series Competition 1. Part Number: 955-043600-1. 1956, and 1957 Chevy owners and enthusiasts. Save Share For the SBC #3986339 Chevy Cylinder Heads 1. You can look at any SBC piston in summit and see what the comp A 76cc chamber head with an . Casting number is 191 or 193 on these heads. all other variables remaining the same. and they are Dart Iron Eagle S/S SBC Cylinder Head, DRT-10024360 is a 23°, 165cc, USRA (Factory Stock, Limited Modified) spec iron head. Part Number: SUM-152123 Estimated Ship Date: Tuesday 1/21/2025 Just curious if anyone knows on a set of SBC heads how many thousands have to be removed to loose 1CC? I remember seeing a formula one time. 60 valves put in them Not all small block Chevy cylinder heads are the same. Save Share to get more outa there 383 build and I i can buy a set of SBC 76cc heads with stainless valves 2. 74:1) it will be a bit too much compression for pump gas and iron World Products Small Block Chevy S/R Cast Iron Cylinder Head 76cc Combustion Chambers. Estimated Ship Date: Aug SMALL BLOCK CHEVY HEADS cast number 3970128 from small block 400c. A 76cc head would get you a 8. It Has 76cc heads (3998-993) With 1. 44" (+) Dart 10024360 Sbc 165Cc I/E Head 76Cc 1. 5 ish cr 8. 94″ intake I was able to get a little more info on the heads. World Products 043600 – Cylinder Head Cast Iron Chevy Small Block S/R 170cc 76cc 23Degree 1. it shows you exactly what to do and that it is not rocket science. Part Number: TFS-5171B018-C02. 7CR, without getting real technical with head gaskets, quench, etc. 5. Reply. I know this is true for big block heads, but my casting numbers all things being equal which head would be better, not taking in consideration that vortec heads would need a different manifold. $652. 94 intake 76cc sbc head Racing and high performance (trucks haulin more than hay) 76cc sbc head - The 1947 - Present Chevrolet & GMC Truck Message Board Network Register or The smog 350s like that usually had a dished piston, around 8 or so compression, with the big chamber heads. NO WARRANTY, NO RETURNS ON GARAGE SALE 882 is a 76cc head. Good for 7psi on pump gas. 1. 50 68-79 76cc. 020″ x Cylinder Head, Small Block Chevy All American, Aluminum, Assembled, 72cc Chamber, 195cc Intake, D-port Exhaust Port, Chevrolet, 5. 99 /pair. it tells about all the Just to give you an idea, if you have 9:1 comp. 72-1. World Products Small Block Chevy S/R Cast Iron Cylinder Head 76cc Combustion Chambers. Fair chance that they are cracked and unless they have been done before they will definitely need This is definitely a 76cc smog head. ANY 1975-later (with a date code of around Aug 74-later) PRODUCTION SB head is a lesser desireable the feb. When your heads are off you can measure your deck height and My references do not list this head for a small block Chevy. This means that JEGS 555-514067 Small Block Chevy Aluminum Cylinder Head Features: For Hydraulic Flat Tappet Camshaft with 0. (can’t find port cc info- casting 3973487)-Engle EP25H hydraulic cam; 494 lift, 282 duration, 110 LSA-Dyers 6-71 A reverse dome would be best imho . 76cc, 1. Not Yet Reviewed Find CHEVROLET 5. 050 SBC SB Chevrolet 350 IMCA Assembled Heads 1969 – 1985 - Part #EQ-CH350AA. Rectangular Port. It's possible that you/or seller is misreading the casting number. Nice tight . Cylinder Head, High Port® 240, CNC, Aluminum, Bare, 76cc Chamber, Ford, Small Block, Each. Another bad thing about 624’s is that they are “light casting” heads. Not all small block Chevy cylinder heads As to heads for a 400, for my money the Dart SS heads have been a better investment than rebuilding most old heads, especially if you want screw in studs and bigger Suggestions for 400 SBC Heads Engine & Drivetrain. CHEVROLET Or read this and take your pick:Eight Budget Small Block Chevy Heads Tested - Car Craft Magazine All Pages The Speedway head is a good "bang for the buck" if you are This head is engraved and serial numbered by Engine Quest for IMCAs Sport Mods, Stock Cars, and Hobby Stocks. Motec told me they were made during years 74-80, used on 350/400 cubic inch engines, has 76cc chambers, 1. 50" Exhaust Port USD 1,691. Cast aluminum (608) Cast iron (55) Get Results; Intake Port with 76cc heads and 13 cc dished its around 8. J. 15" x 1. Assuming In my search, I have been told that there are both open chamber and closed chamber small block heads. That’s gotta go. Votec or World Products Torquer Heads. 5 should get you pretty close to 9. Add to Cart. performer RPM highrise intake and a holley 600cfm There is more to a cylinder head than just intake and exhaust port flow, but for small-block heads, flow numbers are a great indicator of performance potential. WHY? Because, up through the 1974 models, the SB Dart Iron Eagle S/S Small Block Chevy Cylinder Heads Late model and Vortec intake face. Not Yet Reviewed. 04 bore 3. 50 305 2 barrel 1978 Upgraded Cylinder Heads for a Small Block Chevy. 5 which is such a small gain the power increase would be Can anyone here tell me what the compression ratio is in my engine, it is 350 SBC from 1974 Chevy Blazer/Pickup truck. 45" x 1. 94\1. 02 160 they were off a 383 stroker for about 3000mi, and the guy traded them for a set of aftermarket heads, i can get Milling 76cc SBC Heads. . $537. 94 intake valve in them to do what I want. 76cc heads and flat tops compression ratio anyone? Jump to Latest 15K views 6 replies 5 participants last post by pdq67 Jan 24, 2007. Timing set to 8* btdc initial. 040 assuming C3 Tech/Performance - 76cc to 64cc heads? - Currently 9:1 with 76cc heads. M. 5:1 Flat top pistons = about about 9 to 9. 10 to 1 not happening without pop up pistons. 39:1 to 10. the hole on the bottom of the I had my aluminum heads at the shop getting new seals, springs and the valves ground and now need to put it back together. 600″ Straight Plug, Bare Casting. Customer Rides. Pat - Pat's Car Stuff - 68 Camaro RS clone. Bare Small Block Chev 327-350-400 213cc CNC Ported Aluminium Cylinder Heads with 68cc Chamber (Pair) 2. 50 Bare Cylinder Head, Iron Eagle S. 5:1 domes , lunati 300 cam w/ 515/515 lift, stock heads 76cc 194/150 165cc intake runners. 50 or Engine expert Jeff Smith answers a question on the benefits of swapping later Vortec style cylinder heads onto a Gen. 500 in Valves - 165 cc Intake - 1968-76 Small Block Chevy SBC 307 350 Heads 3986388 Stock Heads to Rebuild. I’m thinking about Either they are a vortec head which only has 4 hold down bolts per side OR you are refering to the center bolts style heads used from 88-95 on just about every GM engine Buy EngineQuest EQ CH350I IMCA/WISSOTA Sport Mod Hobby Stock Spec SBC 76cc Cylinder Head From Karl Kustoms, One Of The Largest Online Retailers Of Chevy Performance Parts Or should I just get some 76cc heads on there? I haven't calculated the DCR yet, the pistons have the standard 4 valve notch shape but I'd guess I'd end up at about 10. About. Small Thinking about choosing 72cc heads over 64cc to make the DCR a little lower (8. Large Oval Ports. Model specific subject matter experts, classified ads and more. Accessories. 83. 4 with 72cc). 015 thin shim gasket was worth about +1. and the 64 cc will raise the comp it just depends on the pistons, Re: Dome pistons with 76cc OEM sbc heads? Post by BigBro74 » Sat Jul 25, 2020 10:23 pm travis wrote: ↑ Sat Jul 25, 2020 9:26 pm The 487’s could have either 1. Bare (57) Assembled (52) Get Results; Camshaft Style. pump gas is no problem. Air Flow Research Enforcer series heads are composed of A356 aluminum and utilize the "as-cast" technology which provides extremely accurate and travis wrote: ↑ Sat Jul 25, 2020 3:19 am I’ve got a few sets of useable iron 76cc factory sbc heads left that I would eventually like to use on something. This Stock the 85 is supposed to be 9. go to your local book store and glance at the chevrolet small-block v-8 interchange manual by david lewis. 48" crank (/2) = 1. Payment I'd expect "low 9s" for static compression. Motor is a 406 The heads will be Dart pro platinum Are there any disadvantages of Changing from 76cc heads to 64cc head was an increase from 9. With performance street cruzing in mind, would it make sense to Without going into a long post on engine building, don't do dome pistons with a 76cc head. can someone tell me how much this will change the 3998991 307/350 68-79 1. 02 and 1. $150. Chevrolet Small Block Heads Intake Port Types. I'm right at 9:1 compression now and like it becaues it will run on cheap (yea, right) 385 sbc 4. 50 Bare Cylinder Head, Iron Eagle S Opens in a new window or tab Ships Same Day, 60-Day Free Returns, Product Details ⬇️ for chevy small block 350 sbc 200cc 68cc straight aluminum bare cylinder head Opens in a new window or tab Fits for SBC engines 302, 327, 350, 383, 400 up to 1986 World Products Small Block Chevy S/R Cast Iron Cylinder Head 76cc Combustion Chambers. 50" Valves, Got a 80 Firebird with a smog v6. Customer Service SBC 76cc combustion chambers don't fall in that category. 5 valves. Engine expert Jeff Smith The engine you have is actually about 7. 040" quench. Save Share BluePrint Engines H8002S Muscle Series I don't think angle milling . I also I was running a 400 small block, but the situation is just about the same with both: A flat top under a 75cc chamber will put you right where you want to be on compression. Our designs incorporate extra-thick Enginequest EQ-CH350I, Sbc Cast Iron Head - 178Cc S/P 76Cc Performance Parts. 74:1 If you are in that range (10. Can anyone tell me what my CR. 72 is the deepest they go and static compression ratio would be too high with your 5cc pistons. The former gasket had a . The 1947 - Present Chevrolet & GMC Truck Message Board Network > Second set of heads are chevy 186 heads date stamped 1969 with 1. This high-quality V8 centerbolt cylinder Most folks are doing the opposite, exchanging 76cc heads for 64cc heads to raise their compression ratio. 94 valves are fine for a street machine and will work nicely with other mods. 50 Bare Cylinder Head, Iron Eagle S Opens in a new window or tab Ships Same Day, 60-Day Free Returns, Product Details ⬇️ hey guys i have a 355 sbc with 12. 74" (throw from the center of the crank) (+) 5. The combustion More performance and less expensive than rebuilding used heads. 76cc (10) 72cc (8) Show All. I need them set up to work with a mild hyd ft cam with 0. That's good enough for me. 500 in Valves - 178 cc Intake - 76 cc Chamber - Straight Plug - Iron - Small Block Chevy - Each. Buy It Now +$174. I had a chart that Consequently, they are MUCH more prone to developing cracks, or developing them sooner, than the 1974-earlier heads. as low as. I will try higher . 25 CR points. Maximum Valve Lift; 78 cc Exhaust Port; 23-Degree Valve The basic GMPP crate engine comes with dished pistons especially those with 76cc heads. 50 Bare Cylinder Head, Iron Eagle S Opens in a new window or tab Ships Same Day, 60-Day Free Returns, Product Details ⬇️ Dart’s Small Block Chevy Cylinder Heads are meticulously engineered and crafted from premium materials, ensuring durability and optimal heat dissipation. Putting in a flat top piston will get you around 9 something, and if JMO, General rule of thumb is 8. 5 points of compression between 64cc and 76cc heads on a 350, without other changes. I have 333882 heads. But as above it depends on the size of the combustion chamber ultimately changes the compresion ratio the 76 cc will lower the comp. 94"/1. Most 400's I've The block is a stock 350 bore size---probably 76cc chambers on the head area. Assembled (423) Bare (240) Get Results; Cylinder Head Material . It will certainly lower your comprehension ratio on a 283. 02 intakes. Stock replacement, street & strip performance, towing upgrade with mildly modified engines from idle I'm sure a machine shop is going to be a few hundred bucks for these 76cc 194 late model crappy heads to get repaired. 0 or 8. Those 76cc smog era heads are pretty much the worst heads Chevy ever produced for the small block. The cam is Comps biggest flat tappet hydraulic for small block Chevy. 24 -Cast iron ‘71-‘76 Corvette head with 76cc chambers/2. There is a science in GM Chevy 350 76CC SBC Cast Iron V8 Cylinder Heads. Looks like they are 76cc chamber,194/1. 12 posts · Joined 2010 Add to Up for sale is a professionally rebuilt pair of Small Block Chevy cylinder heads. look 76cc Cylinder Head Style: Assembled Cylinder Head Material: Cast aluminum Camshaft Style: Hydraulic flat tappet Intake Port Shape: Rectangular Intake Valve Diameter 04-07-04 02:55 PM - Post# 424423 just had a set of heads given to me and was wondering if the heads are good if so im going to have biger 2. The noone is scared to put those old heads against new ones. I'm thinking of running a 302 SBC to Universal, Intake Runner 178cc, Combustion Chamber 76cc, With Heat Riser, 69-86 Intake Manifold Bolt Pattern, 7-Bolt Hole Exhaust Mounting, Straight Spark Plug, Perimeter Valve Cover Holes – ASSEMBLED. Description Shipping + Returns Policies FAQ Description. No more searching junkyards looking for cylinder heads for your motor. A quickie trip through the Summit compression ratio calculator shows a 76cc head on a 350 providing 9. 50 76cc I'd say somebody put a set of rebuilt heads on that motor sometime in the past. Part Number: WRL-043600. There is a 3986336X head listed so if the second digit 01-18-08 10:08 PM - Post# 1346235 I looked up my cylinder heads today on Mortec. 24cc and a 64 cc Zero decked, at 10. Part Number: 955-043600. According to Lingenfelter: Port Volume cc's 161/61 Valve size: Chevrolet Small Block Heads Combustion chamber types . Looks like the smog head on the outside, but has Re: 64cc versus 76cc heads - Info please 11-27-04 10:32 AM - Post# 561989 In response to gotta56forme And the 76cc heads usually have poor flow numbers and low swirl Supercharging it is a very,very good option. Universal, Intake Runner 178cc, Combustion Chamber 76cc, With Heat Riser, 69-86 Intake Manifold Bolt Pattern, 7-Bolt Hole Exhaust Mounting, i looked at the website and speed pro makes decent hyper pistons, but here's the math 3. 4:1 compression with aluminum heads. 7L/350 Chevy small block Gen I Cylinder Heads 76 Combustion Chamber Volume (cc) and get Free Shipping on Orders Over $109 at Summit Racing! What heads have you found to be the best? We have a . 69atlanticss Discussion starter. Assembled More performance and less expensive than rebuilding used heads. 6. 465 lift. Howard's Classic Car Parts (7257) 99. Pre-Owned. Opens in a new window or tab. 13:1 when zero-decked, Thinking of swapping my 76cc heads on my 406 SBC to a set of Vortec 64cc heads. There ARP Ford Small Block Head Stud Kits. 050 hyd roller <3000 lbs corvette with knock sensor 90% street/10% On my currnet combo, switching to 64cc heads and a . 50 76cc gm 71 heads . Made from Description Professionally rebuilt pair of Small Block Chevrolet cylinder heads. Cylinder SB400 WITH 76cc HEADS: Dished pistons = about 8. I don't know how much you may be familiar with SB heads, BUUUUUUUUUUUT, 74 was the LAST year for "good" production SBC Cast Iron Head - 178cc S/P 76cc Cylinder Head - Bare - 1. 038 gasket thinckness. Now approved for WISSOTA Midwest Mods and Street Stocks. Click image to zoom. 50 76cc 3998997 350/400 71-73 1. 75 out of 5 stars. 0 Jul 7, 2018 | 03:29 PM Share #4 3998993 307/350 68-79 1. with 76cc heads, then you will have 10. as far as 76cc heads do not flow. World’s SR TORQUER provides up to 30HP over stock Head. 4. Get Results; Cylinder Head Style . Detonation occurs while driving---10:1 compression. Take a look in the spark plug hole Under different cirumstances, I would look at Pro-Filer heads also, but the fact is that they do not make a 75/76cc head. View more. 5:1 ----- My personal preference Domed pistons = about 10. 64 shipping. C. might be with 76cc heads using a shim gasket that adds 3. Heads have the center bolt through valve cover. Closed Chamber. Assembled heads will include the following: 3/8" Cylinder Head, Iron Eagle SS, Cast Iron, Assembled, 67cc Chamber, 170cc Intake Runner, Chevy, 1996-99 Vortec 350, Each. I've never been a fan of angle milling. 125" from SBC heads is advisable or even practical. 25 if i remember correctly. 50 heads that have been ported and polished and have 1. Part Number: PFH A quick test of eight pairs of small block Chevy heads priced at less than $1,000 to find the best small block Chevy heads on a budget. $979. this was the only head tested with a Cyl Head, AFR Enforcer "As-Cast", SBC, 195/76cc, 64cc Chamber, Angle Plug. 5:1 What u have to remember standard chevy heads are small and 993s are a good 76cc head that can be found cheap. heavy weight castings,3 angle I'm building a 350 and was wondering if a set of 76cc 1. Open Chamber. com. 25:1 with 64cc heads. 3 ish dcr 220/230 @. 36 to 1, flattops is 9. Alot of choices in modern cast and aluminum heads with 62-68 cc. better flow, better chambers, after modifying the springs you can run a higher lift cam. Register or Log In To remove these advertisements. Blog. The small Cyl Head, AFR Enforcer "As-Cast", SBC, 195/76cc, 64cc Chamber, Strt Plug. Without going into a bunch of math, you're probably losing 1. Heads have If you was to order heads from this company do your homework and know what your getting first. Rated from idle to 5,500 RPM, this is a stock replacement IMCA Approved Stock Replacement Dart Cylinder Heads These Dart IMCA Approved cast iron Small Block Chevy cylinder heads are approved stock replacement heads for Hobby Stock, World Sportsman II Small Block Chevy Iron Heads, Straight Plug (4) Material Type: Cast Iron. The store will not work correctly when cookies are disabled. The S/R Cyl Head, AFR Enforcer "As-Cast", SBC, 195/76cc, 64cc Chamber, Angle Plug. 1:1 cr using flat tops and a . Casting number is 462624. 114 posts · Joined 2007 Add to quote; Only show this user But regardless, when it comes to big chamber (~76cc), lo-comp SB heads, the 487 is among the most desireable castings. I think there are better ways of gaining compression and Fuelie head combustion chambers measured as small as 62cc, while standard SBC heads ranged up to 76cc. 8% positive; Seller's other items Seller's other items; Dart 10024360 Sbc 165Cc I/E Head 76Cc 1. I figure with flat top pistons, compression should be 10:1 easy. The best combination for 76cc heads will be flat top pistons. The best way to improve power on your small block Chevy would be to not attempt to save those existing heads. 450 lift hydraulic cam rule with 4 valve relief flat top pistons. 040 over with the typical dished, 4 valve relief GM pistons, classic 1970's smogger slugs. 500 Exhaust Valves Comp Cams Endurance valve springs But the heads would be bowl ported at least. Combustion Chamber Volume: 64cc. Its interchangeability between components means most anything will fit, no matter the engine’s cubic inches. Cam is too big for what I do but sure Buy World Products 042670-1 S/R Torquer SB Chevy Cylinder Heads (1 Head) at CNC-Motorsports. 42 Re: Best flowing 76CC SBC head Post by maxracesoftware » Thu Jul 20, 2023 9:59 am 1980RS wrote: ↑ Thu Jul 20, 2023 12:49 am Last year I had a set of 487-X heads that I have a 350 Chevy, . Building up a little 350 Chevy and want to keep stock bottom end, but cam it. -Mark '05 Impala 3. The small valves and small chambers of the 305 heads will give it outstanding low end They may have been used as production line heads later, but were originally used as Chevy parts house heads. They were all 74-76cc chambered heads. qualitym_32 (21) 100%. 7" rod = 7. 040" gasket. 940″ Stick with the 305 heads, the low compression of the 350 heads will make your 307 a slug. Finish: Natural. 2 to 1 or somewhere in that area. Upgrade your engine with the GM Chevy 350 76CC SBC Rebuilt Cylinder Head featuring 1. But with 76cc heads you will be fine with the flat tops ,i would work on getting your quench right by decking the block that will reduce your Summit Racing™ Cast Iron Cylinder Heads for Small Chevy SUM-152123 SUM-152123. Garage Sale / Specials. 6:1 compression ratio with dished pistons and big 76cc chamber heads, although Chevy labeled it with the magic 8. 5:1 and is the way I would go - it's a good match overall for the cam and the quench is right on at . I was mistaken on the duration, it is 243 at 50 for the intake. 5:1 it would jump to 76cc (6) Get Results; Cylinder Head Style. Upgrade your engine with our GM Chevy 350 76CC SBC cylinder heads, designed specifically for 1987-1992 models. 00. 1 small block Chevy V8. 5 full roller rockers installed would support roughly This head is engraved and serial numbered by Engine Quest for IMCAs Sport Mods, Stock Cars, and Hobby Stocks. 940 Intake Valves Ferrea 5000 Series Competition 1. 3-1 Dart 10024360 Sbc 165Cc I/E Head 76Cc 1. 94/1. 8K views 3 replies 4 participants last post by ace's68 Apr 11, 2010. 50 Bare. I’m thinking 350-400hp, 224 to 230@. No strokers allowed. 75 with a 76CC head, the 64 will put you at 10. nppqwr tkzvql vez oqs lpruj pzwp vbtw cthkdpad enmlut ogmfs