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Old 08-27-2005, 04:57 PM
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Peanut Port 454 build

ok, doing a mild rebuild on a 454 i got for cheap its a 89 truck motor....

what is the best cam and manifold combination to use on this engine to make tire destroying torque in a 3200lb street car with 3:73 gears?

basically whats the best way to make power with the limited flow peanut port heads????

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Old 08-27-2005, 05:04 PM
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Nothing over .500 lift and a Performer intake (not the RPM it would be a waste) The heads are limited to 4K-4.5K rpm...


Is it a Gen V engine...? If so I feel for ya

If not why not go with a set of large ovals...?
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Old 08-28-2005, 11:07 AM
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no its a gen IV, I'm eventually going to get a set of 781's and build the thing for serious power, but i want to get it in and running soon

torque is my main emphasis right now, not horsepower and rpm capability
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Old 08-28-2005, 11:27 AM
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Horsepower is relative to torque and horsepower directly. Don't forget upper end horsepower just for low end torque. Plateau the power curve.
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Old 08-28-2005, 02:06 PM
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bobbypantera... I looked at Summits cam & lifter kits and their part number K1300 & would work nice and be a cheap solution @ $82.95 plus handling...


When you change heads you`ll most likely change camshafts as well...
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Old 08-28-2005, 04:19 PM
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I would go for it if it is all you have and an in-vehicle head swap has no space limitations. It's a good set of heads to try to do a home porting job on.... nothin to lose if they dont work out. Hey bump pls elaborate on the gen V... I got one in a 92 pickup with tbi. Is there any hope for it? I believe they are a roller cam block, but the heads are a sore spot?
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Old 08-28-2005, 08:04 PM
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Rat... The Gen V is kinda all to itself as for heads... Its a one piece rear main block which is good in some ways... But as for heads you cannot use the Gen IV heads on the Gen V block (water jackets do not line up) but there were some nice square port heads for the Gen V`s (088 castings) not sure if any large ovals were made for the Gen V...? Also the 92 you have should not have adjustable rockers but can be converted... But also it has the little 5/16ths push rods so combined with the peanut port heads it would be wise to use a different head and valve train... I think the Gen VI heads will work on them though...? Can you say Vortec...? I mainly deal with the Gen IV stuff and have found it to be easy to deal with for the most part...
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Old 08-29-2005, 08:03 PM
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They are pretty tough to pull on an in-chassis head swap like my chevelle, with 2" primaries on the headers and little or no clearance to get the pipes out of the way. You may want to consider getting what you want and waiting instead of wrestling your heads over the fender! 781's still seem fairly attainable and affordable. Interesting..... never thought about a vortec upgrade for my 92 p/u. How many horses is that worth? Gas milage can't get much worse!
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Old 08-30-2005, 05:42 AM
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Should be a good increase... Possibly 40-60HP...? Of course they would need to ports worked and the hardened seats unshrouded but with chamber design and just overall better flow you cant go wrong... I dont think they changed the intake pattern but dont quote me on that one though...? If not a cheap Performer (not the rpm version) which has the Q-jet base pattern along with an adapter that GM used on some BBC`s with TBI and you can have your stock componets and more zip too...
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Old 09-30-2013, 08:08 PM
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446 hp from a peanut port headed 454 is not breaking news. when car craft has a 454 build up called {Cheap big block engine build $2,650 big block chevy} car craft october 2010 and only with 9,3:1 compression small cam 446 hp and 548 ft lbs torque. All at 4900 hp rpm and 542 ft lbs torque at 3600 rpm. A little more cam would have this peanut port 454 in well over 500 horsepower. But at at a higher rpm 5500 or more rpm's. I personally would go for the 446 hp motor for the street. If I Want 500 latter on then a cam and valve spring kit would do the frick. especially a late model one piece rear main roller cam motor.
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Old 09-30-2013, 08:17 PM
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Arless,this thread is 8 yrs old.
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Old 09-30-2013, 08:47 PM
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Quote:
Originally Posted by jokerZ71 View Post
Arless,this thread is 8 yrs old.
My bad I never l@@ked, Quess i'd better start looking. Boy what a waste of time typeing and looking all this mombo jumbo up. Thanks Joker
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Old 10-01-2013, 10:26 AM
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Quote:
Originally Posted by arless View Post
446 hp from a peanut port headed 454 is not breaking news. when car craft has a 454 build up called {Cheap big block engine build $2,650 big block chevy} car craft october 2010 and only with 9,3:1 compression small cam 446 hp and 548 ft lbs torque. All at 4900 hp rpm and 542 ft lbs torque at 3600 rpm. A little more cam would have this peanut port 454 in well over 500 horsepower. But at at a higher rpm 5500 or more rpm's. I personally would go for the 446 hp motor for the street. If I Want 500 latter on then a cam and valve spring kit would do the frick. especially a late model one piece rear main roller cam motor.
I looked that the "other" thread and let it go.Now this thread too??.

LOOK THESE "COMIC" BOOKS LIKE CAR CRAFT AND ALIKE HAVE A VESTED INTEREST IN HAVING DYNO RESULTS THEY DO IN THEIR FUDGED ARTICLES!!

If anything of value come from them is a knowledge of how to read between the lines.Even at that,there is sooooooo much B.S. in the articles,you best off taking to heart the advise given on here.
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Old 10-01-2013, 10:51 AM
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Even though this is an old thread, we can glean some good from it. For instance, it gives me another chance to rail against flat tappet cams in a BBC. An engine builder I know will not build a flat tappet BBC unless the customer signs a release of liability form.
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Old 10-01-2013, 11:13 AM
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I think the gas milage and 446 hp for a street engine is a good combo. A late model truck engine with roller cam, and one piece rear main seal. Plush the electronic fuel injection run's clean. so no piston wash down on a cold start up. Like all carbs do. Plus the small port heads are dirt cheap.
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