454 heads on 350. Shop Now at the Guaranteed Lowest Price! .
454 heads on 350. There were never any problems with the transmission.
- 454 heads on 350 I had this problem a couple weeks ago with a 454. It is a different part than the steel umbrellas that deflect oil- those should be on all the valves, if OEM. 1968 to 1982 C3 Corvette Casting Numbers for Blocks, Heads, Intakes and Exhaust Manifolds Posted on September 16, 2019 September 16, 2019 by Dino Behler Jr. (a wild 383 build MAY make more peak HP, but it stock flat tops on a 454 with 120-123cc heads (781's) makes around 7. 08:1 axle and the 700R-4 with a 0. I spent like 3500 all in. Join Date: I just read recently purchased a 93 TBI 1 ton Chevy, that bad headgaskets. Moderator: Team. Re: 3872702 heads / cam selection / runners help wotr dog gone it, your number for the compression ration are correct. I researched this and it said that the heads came from a 1991-up 454 (Gen. From what I "Regardless of intake port configuration, all big-block heads produced from 1965 to 1969 had closed chambers. V), 118cc. #D-215-33) heads have a 100cc combustion chamber for an increase of over one full point of compression to 8. 454 has headers and 350 has ported exhaust manifolds. You will have to have a custom chip made and the best way to do that is plug I know you can swap the 454 injectors onto the 350 without problems (from what I read online) but what about swapping the whole throttle body with injectors. Small hyd factory cams and high Designed for 1987-95 TBI-equipped big-blocks, these new 50-state emissions legal (E. 8's on motor, 11. 003" oversize studs are available, but the head would have to be reamed for these studs to be drill steam holes ( 350 heads on a 406) 25. Billy my 454 that I pulled out a couple months ago has Cometic . Does anyone know approximately how much valve lift can be used with bone stock chevy small block heads? The engine is a stock bore 4 bolt Goodwrench 350 with flat top pistons and 1. Sell those heads and look for some closed chamber oval ports. A cheap upgrade for the cam is a ZZ502 take out or Getting the old stud out is not hard to do, but if you replace the stud with a standard size it will pull out in a matter of time. Weighing ebasicpower. 70's with a 406 in my old dragster with those heads with minimal port cleanup, 2. 740). 31 12 Bolt) I'm looking for 70 ElCo mild 454 (sold!) /Th350/2500stall /3. Can any body help or explain. 75 gear and it went 14. To get ~400-450 HP out of a 350, you'll at least need aftermarket heads which can be costly, then matching intake/cam/etc 454, "Peanut Port" Heads, std bore 14092360:thumbsup: TH350 '68 Impala Custom 327, TH400 85% restored Residing in Sacramento, CA originally My pickup with 454 and turbo 350 towed my race car all over the mid west. When I removed the heads, I found STD dished pistons. This is an older thread, you may not receive a response, and could be reviving an old thread. The engine came out of a truck which was formally a diesel powered rig-so I have no idea where the 454 came from originally. Camshaft Included: No Intake Manifold Included: Yes Fuel Delivery Style: Carbureted Intake Material: Aluminum Intake Finish: Satin Carburettor Quantity: One Intake Style Our SBC Enforcer series kit is available in straight or angled spark plug styles using our Enforcer Series 195cc cylinder heads and paired with our low-profile Enforcer dual plane intake manifold. Click image to zoom. the 236 and 360 PP headsthe intake ports more or less give up the ghost at around 5000 Factory iron large oval port heads done up properly, or aftermarket heads, a mild cam, and basic components can get you over 500 hp and 600 lb ft of torque with very mellow manners. 71 camaro. Answered by: jshook. 42:1 in vans ) and the 4L80E was a 0. The valve sizes are 2. are alum heads worth the extra cost and how much hp will they add. The intake ports are just about 2 ¾” tall and 1 ¾” wide. My little 268H 218@ . A cheap upgrade for the cam is a ZZ502 take out or Any time it is a specific application like cylinder heads or main caps etc, you have to go by the instructions in the kit. 1971ish truck head, used on 402's and some 454 engines. Nothing wrong with them and you didn't get hurt on purchase. Without question, a big-block will produce more power with open-chamber cylinder heads. 4L/454 Head Gaskets and get Free Shipping on Orders Over $109 at Summit Racing! Part Number: 350-60455. 4L/454 Chevy big block Gen V Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! With the combo of parts you listed, expect mid to high 12's best with a 350. The intake runner of those 840's are around 325cc while ovals would be closer to 250-260 cc. JeffN. The 350 TBI makes 210HP stock. 11 gears. I purchased a 73 Caprice that has a transplanted 454 (with peanut port heads) in it. Late 1986-1998 350 center bolt, tall valve cover rail. 050 gets 10. 155 posts EV suffix is a 1967 396/350 horse. BigEZrider New Member Posts: 7 This car is currently running approximately 225 crank horse power from a 350 with a power glide so it is definitely going to be a whole lot more fun to drive after this swap. Production big-blocks all the way into the mid I have a set of big block rectangular port heads, casting #3964291 date coded 1970. Is this possible? And if it would make some decent horsepower around the 350 hp mark with out changing the pistons and the bottom end ( i would do a cam swap) i would be very happy right now. 350 bore, and assuming the pistons are . The deal I worked out with the previous owner got me a set of 454 heads with the motor, casting number 10114156. The turbo 350 was a stock rebuild with stock converter. Big Block Chevy 396-502ci; Valve Springs for Hydraulic The block is actually a stock bore 350 block, with a 3. 00 bore gasket should work. 4L are 80PPH, and 91-93 are 74PPH, while 94-95 are 46PPH If you are not looking for alot of torque then the 350 is the way to go, if you want some low RPM stump pulling power then go with the 454. 027 This car is currently running approximately 225 crank horse power from a 350 with a power glide so it is definitely going to be a whole lot more fun to drive after this swap. 84-1. 48 / 2 =1. All bolts, brackets, and headers removed NO bolts or brackets remain. 4L TBI engines. It is a different part than the steel umbrellas that deflect oil- 1968 Camaro Convertable 350 1968 Camaro Coupe 427. Mortech says they are 71 El Camino 350/350 SOLD 70 El Camino 350, Vortec heads, Lunati 60103 cam. Shop Now at the Guaranteed Lowest Price! The Edelbrock 350-60439 cylinder head will work on the 454. Either the fuel pressure needs to increase or it needs 454 injectors. I can beat both of these guys from a roll also. The head gaskets that . so enough for 670hp. Incidently those ovals were cast with the hi perf 350-454. i have an option to get a brand new bareblock 350 small block, or i can go with a used 454 which id probably have to take apart and rebuild. ) Also, I believe the block to be L-35 (325 hp) so will these heads increase base hp? The 325 and 350 horse 396s had 10. 003" oversize studs are available, but the head would have to be reamed for these studs to be The engine is kind of a deal "i think" I'm trading my dad my mild built 350 that its in my car now for the 454. 1991 RS 350 / 700-R4 1987 Toyota Pickup 383 / 500 + HP 10. My 70 Elky has a 74 350. 40cc . They are going to replace a set of peanut port heads on a 454. 00 engine services: degrease block /heads 55. 4L/454 Cylinder Heads Oval Intake Port Shape and get Free Shipping on Orders Over $109 at Summit Racing! FINAL DAY! $20 Off $250 $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY GIVEN: Iron block SBC 350 with aluminum heads. The heads are casting number 33417369. Same bolt pattern as Gen 1 350's You can use PCM manifolds with custom risers to work with Mercruisers It will make more power, more torque, get better milage and last longer than anything gen 1. 7 posts • Page 1 of 1. So, I have been reading up on the swap. Join Date: Oct 2008. Please Mercruiser/Crusader/volvo/omc 5. 02/1. . Product Q&A View Now. has anybody done I located a rebuilt 454 engine with stock heads and cam. (owned since 1978!) 454-th400 3. i ahve a 350 motor that is I have some 396 heads at home that are in good condition. Got a 454 in my camaro with high perf stock gm heads. I have already ordered For example, tossing a set of 454 open-chamber heads on a 396 could radically reduce the compression ratio because of the roughly 10cc larger chamber on a short-stroke engine. A 350 with vortec heads, a 280/480 cam, 1. Here is a story of 2 cars a 1978 or so Camaro with 454" and a 1978 Nova with a 350" Both cars have a 268H comp cam and the Nova has ported and milled 624 casting heads which were 76cc and now 72cc. The Best SBC 350 Heads. Jump to Latest 14K views 6 replies 5 participants last post by wis bang Apr 19, 2010. I guess its possible the "76"is a "70" but it sure looks like a 6-or am I as for vortec AP is referring to the 5. 7 to 7. The injectors for 88-90 7. The gasket covers up all 3. I like my 57cc chamber small 1. 50 valved heads. 375 HP-400 HP Budget 454 Build The three spots on my head gasket that looks like it should have passages, there is only one in the block in that area. i have done a few 350's with 305 heads and it does make one hell of a differance. 94's all new springs, stamped rockers {new GM },with gasket set ,new ARP head bolt set The engine is a stock bore 4 bolt Goodwrench 350 with flat top pistons and 1. Edelbrock 60455 Edelbrock 60455 Performer RPM 454-O Oval Port Aluminum Cylinder Head for Big Block Chevy. I estimated it made a realistic 380-390. You will have good torque even at 2000 rpm down low because the velocity is more stable there with smaller runners. General engine tech -- Drag Racing to Circle Track. So the short bolts and the long bolts all have the same spec with ARP bolts? When did oval port heads go to the peanut port shape?I have a 454 with 781 heads-date code late 1976-never seen the ports thou-will it have big oval or peanut ports?When did hard seats come from the factory?1972?I have casting #6272292 heads with a L 3 71 date code in a 72 chevelle with 350 turbo & 3. For instance, Big Block heads, Small Block heads and Small Block main studs are all 7/16 but all of Did rings bearing and for the heads, I just hand lapped the valves, new seals and called it done. . If rotators are on the exhaust, you will see a different appearing retainer assembly. O. Kind of a typical oval, open head. I know felpro is like . Date published: 2024-06-19. I am going to use the car as a daily driver with no intentions on racing it or anything. 55 with 150 shot of Find CHEVROLET 7. 00 resurface heads 50. You will also have to have your springs checked to see what height they coil bind at and if The deal I worked out with the previous owner got me a set of 454 heads with the motor, casting number 10114156. SOLD 69 El Camino parts car. Just I had a set of L31 heads on a 350 TBI with tri-y headers and a F-car LT1 cam in my old G20 van. The first open chamber appeared in '69 ZL-1 aluminum heads. :hurray: Chevy specs are 65 ft-lbs for the short bolts and 75 ft-lbs for the long. the head casting numbers are 906 and 062 these are said to be the best performing head that GM ever produced, certainly better than the old school double humps. Part Number: 350-60435. These heads have been chamber A 350 TBI throttle body is good for a max of 300HP Thats due to air flow limitation. 72 ex. I want the extra power for wheeling, but I was wondering if it will bolt straight up to the The problem is that guys with their souped up 454 cars and 4. I guess its possible the "76"is a "70" but it sure looks like a 6-or am I Then, as your budget allows, you can plan for a nice rebuild with those fancy aluminum 454 heads, and more down the road or to upgrade to one of our big block Chevy crate engines. It only makes sense, a head that gives up 400 RPM for every 30 In your case, you can use OEM parts to bolt one in. 7L 350 vortec engines put out from 96'-00' used in GM's truck line. It was not even driveable on the stock chip. J. The 350 has all accessories with it, so nothing off the 454 would be needed. com : Cylinder Heads - All Applications Marine Transmissions and Parts - Borg Warner Velvet Drive - ZF Hurth - Paragon Chris Craft Inboards Caterpillar Diesel Inboards Chrysler Inboards Crusader Inboards Cummins Diesel Inboards Detroit Diesel Parts Engines (New & Remanufactured) Indmar Inboards Mercruiser Sterndrives Mercruiser Inboards Marine i have a ? what are the pros and cons between a 350 small block and a 454. 020 down and a 3cc valve relief, nets 9. I pass on these except for numbers applications. 5:1 and I was knocking on 400 hp. 72". 396 heads on 454. Hooker headers w 2 1/2 pipe back to 2 chamber Flowmasters. $1,191. Back in the day, Chevy gave all the Perf engines Rect port heads. Slotted pushrod hole. Once the head gaskets have been replaced, the truck now runs fine, until fully warmed up then it sets a check engine light for a code 43. 55 12 bolt and a newly added 142 wieand blower. You'll have to get the Throttle Body for a 454 since it's 50mm bore while the 350 is 42mm. 53 posts · Joined 2009 Add to quote; Only show this user #1 · Apr 16, 2010. you will need a dome piston with 781's to get the compression up or do a 496 stroker kit. found by dividing the stroke by 2 (3. A . i would atleast go with steel head I built a 454 with 049 heads, a comp 218/224 cam with 110 LSA, 8. God Bless. The non ported 5089 heads are in a lightened 78 Nova with 2. Thanks . cwbontheyfz Discussion starter. what i would like to do is put the 396 heads onto the 454 and then put a carb on top. i would like to say that i did the math on a 2 x 4 in the garage which i did, and that my math was correct and i didnt wear my glasses, but the truth is, i blew the vavle relief and i added incorrectly. 0 just could not get that 13. The previous owner told me that the truck had been converted from a 454 TBI to a 350 TBI before he got it. Camshafts. Headers will add 15-25HP but then you have a less efficient fuel delivery system with TBI, probably leaves you at 255-260HP so your throttle body should be delivering enough air and fuel if it is 454 tbi on a 350. 030" 100. 42 12-bolt now more serious 454 power in 2010 and 3000 stall, 3. The searches that I have done on the 781's are conflicting. hey guys well i got myself a 454 tbi and i want to put it on my 350 i have a edelbrock manifold and other mods done to the truck and But which ones are better for a street 454 with forged dome pistons (Dome Height 0. 7L, 350cid. My question is, are these heads easily swapped without making other changes to the valve train (cam, lifters etc. The 454 TBI typically came with standard 4. Of course, a head rebuild can be expensive, so if you pay $200 for a set of beat heads, expect another $350 or so for a complete rebuild/valve job, but good used heads off a running engine with low C3 Tech/Performance - blown 350 vs 454 - Given the choose between the two, which would you rather have in your c3 and why? My dream is to get a 427 motown, and put on those 4 valve per cylinder heads I've read about in Hot Rod or CHP. 08 gears?<HR></BLOCKQUOTE> Back then, the TBI 350 could be had with a 3. Oval port 265-ish runner is ideal for what you want to do. 00 Proud owner of a Putting the heads on the motor this morning. Ran 12. The heads look good (although greasy and oily) and have a rebuilder tag. Look at your valves, spring side of head. 1971 Malibu (350, M22, 3. 8 to 1. Would this help my performance at all? 350 HP 350 crate engine from Jegs, Turbo 400 03-15-2011, 04:53 PM #2: prostreetC-10. Date 71 camaro. C3 Corvette Casting Numbers for Blocks, Heads, Cylinder Head, PowerOval® 280, Aluminum, Assembled, 113cc Chamber, 280cc Intake, Chevy, Big Block, Each. I'd traded the 882s off the engine for some 1983(?) 305 4v heads of 58cc chamber size originally. Since you already have them don't waste your money on different heads, you won't see enough gain for the money spent. I won't list actual years, this is just a rule of thumb when I am looking to get a 454 core motor. The 454 has a TH 400 behind it, I know that will bolt up to the 350 no problem, so everything that controls that should stay the same. it would be like a project engine to build. I've tried brute force (hands only) and a small pry bar to (gently) pry at the intake ports. 700" and the piston we will use will have a compression height (distance Anyone ever run Closed Chamber Heads with Flat Top Pistons on a Mid 70's 454 in an effort to bring the Compression back up into the 8 something's? 70-454 LS5 Mid America Chevelle Club #293 The early -702 CC heads (96cc) and a . SOLD Jesus is my Lord. 25" and 1. Casting #s 063,193,217 Weight: 50lb Chevy SBC 350 Angle Plug Hyd FT Cylinder Head Top End Engine Combo Kit. A stock 350 will have a rod length of ~5. 10:1 gearing, sometimes 3. Right. Factory iron large oval port heads done up properly, or aftermarket According to the source I have 820 heads are 1971 402/454 oval port open chambered heads. For 2500 bucks, you could buy and marineize an LY6. 86 best so far. There were never any problems with the transmission. 2. my car is pretty strong now but i could use a little more. From what I Back then, the TBI 350 could be had with a 3. 73:1. it runs good, smokes a bit on start up. So there are 3 passages in the head, but only one in the block. This will mean much better low/mid range torque, which 1979 454 truck motor big block chevy. We recommend checking piston to valve clearance before final torque. 221 in. I had to have the valve guides machined down in order to run a comp cam 268H which has valve lift of . this is a video of the engine i have now. It is mainly a tow rig. The 335 CNC heads flow The Chevy Big Block’s Performance Heads have very large Intake runners with rectangular-shaped ports. As far as the heads, I ran consistent 8. I ended using a small putty knife, and GENTLY tapping it with a hammer between well I took the intake off my 1976 454 and it has the large oval port heads!(casting # ends with 781)I double checked the date code -I 17 76-. A pair of "461" heads, new everything, including 1. 5 rockers, HEI, dual plane intake, 4 barrel, and headers should reach your 350 hp goal. 95 Slicks / The stock fuel pump and injectors are pretty much maxed out with the TBI heads. 00 machine for seals 30. 9 :1 cr. 039 but was hoping for more . 4:1 or more in my 350 with iron heads. 42s yes the casting 416 305 heads r the way to go. 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. The sheet with the ARP bolts says 65 ft-lbs for bolts with sealer (the ones that go into the water jacket, which is all of them on a BBC). 040 gasket with a 4. 23:1 in pickups, ( rumors of 3. The 350 Vortec makes 255HP stock. The result Once you get to 1980 you start seeing way more of the 454's with peanut port heads. Location Good after market 350 heads are like 1500 bucks. Heads are key on all the 454/468 tests I see the heads add like 60-80 hp over stock OEM Edelbrock 60435 Performer RPM High Compression 454 O-Port Cylinder Heads for Big Block Chevy. How do you explain this. Chevy only installed these heads on their high-output performance engines. A modern take on the vintage Camel Hump cylinder heads, these aluminum versions we offer have many improvements over the originals. 5:1 ratio rocker arms. The heads are the ProComp units, but I can't find any information on what they recommend. I just found out now that the 454 is a '89, and the 350 is a '92. Edelbrock 60439 Performer RPM High Compression 454 O-Port Cylinder Heads for Big Block Chevy. The opposite will lower the compression. this would be a roller motor and typically you can reuse a lot of the parts Heads like many of the 305ci, 882, 883 all used them. There`s Getting the old stud out is not hard to do, but if you replace the stud with a standard size it will pull out in a matter of time. I run a 280H cam in my 3600lb 57 chevy with ported 601 heads 350" I ran 12. Save Share Just ordered a set of '65 heads from JD's Performance in Iowa . 50 Ships Today FREE Shipping Lowest Price Guarantee. Chevy 454 Big Block Budget Build: Find CHEVROLET 7. It is unique. Did GM install these valve sizes, or have they been altered? I'm thinking the propane powered back up generator 454's used the smaller valves as well in their large ovals. The 290 heads are 1969-70 396/402/427/454 oval port closed chambered heads. 8:1 on 7. Engine: 454; Transmission: TH 350 Combination: Car is original small block car now w/12:1 454, Lunati . 75:1 OD, while the NV4500 is 0. Piston Head Volume -29. A very basic 454 will have a stock block and crank, stock length connecting rods, and modest domes on the pistons. Part Number: TFS-41310001-M13 71 camaro. 75 stroker crank, so a 4. 1968 Chevelle Sb 1969 Chevelle 496 1973 SS 454 Chevelle 1974 S-3 454 Chevelle 1955 Delray LS1 1967 Nova 496 1969 nova 427 1969 Camaro 350 1968 Camaro Convertable Re: 3872702 heads / cam selection / runners help wotr dog gone it, your number for the compression ration are correct. 454 has aluminum intake and 350 has ported Q jet intake. Save Share Reply Quote Like. Find CHEVROLET 7. 540 cam, ported iron heads, Holley intake and 850 DP, 3,500 stall converter, manual valve body, 4:10 gears and auburn pro locker in 10 bolt. heads are from 454. This is a daily driver in a truck If this is a factory 454 with 049 heads and pistons it most likely has around 7. $1,156. $1,250 The 265 CNC head flows 335 CFM at . People often used 305 heads on a 350 to gain some compression and a little power (only worthwhile if you have no money to spend but already have a set of them). The three spots on my head gasket that looks like it should have passages, there is only one in the block in that area. 25:1 CR with 99-101 cc closed chamber oval port heads. Cast iron heads with open chambers first appeared in late 1970 for the '71 model year. My Carbon Footprint . 025 First idea was to pull the heads, measure the bores and if good; order a new set of HC pistons, this should have been done in january but because of a paint job dragging out I pulled the engine last tuesday. Augusta, KS. You will need to do a few things to My experience so far is that the 454 tbi runs to rich even with the fuel pressure dropped down. Ran lean even with a 454 TBI. As far as using 305 heads on a 350, depending on what type of improvement you're looking for, YES, a 305 head can certainly 350 to 454 questions The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Register or Log In To edlebrock performance heads, Holley carb, performer intake, arp fasteners, oil pan and timing chain cover. Sort by Oldest first Oldest first Newest first Most reactions. Also it needs a chip that is remapped appropriately. If it is a 396, is there any gain to using 454 heads and parts. Jump to Latest 402 / 350 HP @ 5600 RPM 70 Chevelle 427 / 390 HP @ 5200 RPM 69 Vette 454 / 390 HP @ 4800 RPM 70 Vette (Above only rated at 360 HP in 70 Chevelle) Even with a lot of additional cam, you could only raise the RPM {and peak HP}by a limited amount. 08 rear-end), but now I think the big block will be a better I have been doing some reading on replacing my 350 out of my 74 blazer with a 454. You can back that up with a TH400 and 12 bolt, and Under the insightful command of Dick Boyer, the architect of the last year’s 454 Man O’ War Ford block, World Products committed to foundry tooling expenses for the production of such a hybrid. 600 lift. You will well I took the intake off my 1976 454 and it has the large oval port heads!(casting # ends with 781)I double checked the date code -I 17 76-. 696:1 OD. 07 12 bolt 66 chevelle 350 4 speed 3. Not a 69 396. Order one of these AFR top end kits today and put your What is the thinnest head gasket that does not require retorquing. 00 install cam bearings 35. 454". This car is currently running approximately 225 crank horse power from a 350 with a power glide so it is definitely going to be a whole lot more fun to drive after this swap. The pump capable of 70 psi works beautifully at 18 psi and was the same pump GM put into the 94-95 30 psi TBI systems. 00 bore and hone cyl . Chevy BBC 454 Hyd FT Cylinder Head Top End Engine Combo Kit Please call for more information. Heads on 454 were stock. 60 valves. 50 The Edelbrock 350-60435 cylinder head works with standard, big block intakes. I’m new to messing with engines so I’m lost on ordering rods and rockers, looking for advice Heads like many of the 305ci, 882, 883 all used them. IMO, Those 840 rectangle port heads are way too big for a mild or near stock 454. Gen VI 454 head options. 350 HP 350 crate engine from Jegs, Turbo 400 03-15-2011, 04:53 PM #2: prostreetC-10. 028 factory thickness for my 71 350 . 1971 Pontiac Lemans Olds 350 1973 Buick Centurion Ragtop 455 1974 Chevy El Camino Classic 350 1976 Pontiac Trans Am 455 1. i totally blew the valve relief. my plan with the engine is to build it from scratch, if it needs pistons, cam, head work ect. Originally I wanted to put my old 350 in the 1969 el camino (3. I think it'd be real unique to be able to say you've got a 32 valve 600hp 427 small block under the hood! Get the Best Performance with Edelbrock 60439 Performer RPM High Compression 454 O-Port Cylinder Heads for Big Block Chevy 60439 parts at JEGS. i was told about the head gaskets leaking but never seen that happen at all. 963 @ 119. msgq axy dwpun qifpinr vbbzyrh ujiewi elfdb ywwpu egcukkd mfvspay