Engine Build Questions - Team Camaro Tech
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post #1 of 15 (permalink) Old Apr 15th, 11, 08:11 AM Thread Starter
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John
 
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Engine Build Questions

Hey Everyone,

I am considering a top end engine build up to get more horsepower and neck snapping acceleration. My current setup is:

BB 396
Stock Exhaust Manifold
3993820 GM Heads
Part L2354F-30 Pistons from Summit Racing (Around 9:1 Compression)
Hydrallic Flat Tappet CAM - Duration 222/235 (500 to 510 Lift) 115 lobe center
Dual Plane Intake Manifold
Holly 650
Non HEI point distributor

This is pretty much a stock 396 with around 320hp - 350hp

Here is what I propose for the engine build to achieve around 400 to 420hp

Howards CAM part# 120245-10 Duration @ .50 = 224/232 (568 to 576 Lift) 110 lobe center
part# 91167 Hydraullic Roller Lifters
part# 3610 AFR 265cc Open Chamber Heads
Keep my existing long slot stock rockers
1 7/8 inch hooker headers

What kind of performance can I expect from this upgrade? Any reccomendations or suggested changes?



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post #2 of 15 (permalink) Old Apr 15th, 11, 08:21 AM
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Mickey
 
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Re: Engine Build Questions

A bigger carb for sure- about 750 to 850.
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post #3 of 15 (permalink) Old Apr 15th, 11, 08:33 AM Thread Starter
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Re: Engine Build Questions

I knew that response was coming . Anything else?
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post #4 of 15 (permalink) Old Apr 15th, 11, 04:04 PM Thread Starter
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Re: Engine Build Questions

I made a mistake. My carb is a 750 vacuum secondary and my distributor is a point distributor.
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post #5 of 15 (permalink) Old Apr 16th, 11, 07:13 AM Thread Starter
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John
 
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Re: Engine Build Questions

Hows the Cam look? What performance can I expect with a 3.42 rearend?
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post #6 of 15 (permalink) Old Apr 16th, 11, 08:31 AM
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Re: Engine Build Questions

Good set-up, I think. Set in headers before installing heads, more room.
Good luck. Go with existing ancillary eqt to get a good baseline.

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post #7 of 15 (permalink) Old Apr 16th, 11, 11:30 PM Thread Starter
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John
 
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Re: Engine Build Questions

Quote:
Originally Posted by Everett#2390 View Post
Good set-up, I think. Set in headers before installing heads, more room.
Good luck. Go with existing ancillary eqt to get a good baseline.
Thanks Everett.
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post #8 of 15 (permalink) Old Apr 16th, 11, 11:34 PM
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Re: Engine Build Questions

Quote:
Originally Posted by Everett#2390 View Post
Good set-up, I think. Set in headers before installing heads, more room.
Good luck. Go with existing ancillary eqt to get a good baseline.
X2, ya beat to the punch, Ev. Coated of course!

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post #9 of 15 (permalink) Old Apr 16th, 11, 11:47 PM
Aaron
 
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Re: Engine Build Questions

Names Aaron, Im about to be purchasing a Camaro next weekend and dropping everything out and building it myself mainly just engine and tranny. First of all im dropping a 454 biggie in it and its an 85 camaro. Im wanting to get a supercharger thrown on it and i was wondering, it being a big block built for that power when i throw a supercharge on it will i have to beef up the cam, rods, ext. Second of all im also looking for a great tranny for the 454 to be able to handle the hp im hoping to get out of it. Any Suggestions? Last but not least, iv worked on alot of newer cars and know my was around the engine pretty well but older ones im not so sure, is there any other way to get the max hp im looking for out of this engine besides the supercharger. Thanks
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post #10 of 15 (permalink) Old Apr 16th, 11, 11:58 PM Thread Starter
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Re: Engine Build Questions

I cant help you with the engine build but you really cant go wrong with a muncie 4 speed. The M21 can handle a very powerful engine. M22 is even stronger but they are loud transmissions due to the way the gears mesh together. There are the more modern transmissions out there but the muncie's (when built right with the correct heavy duty bearings) are outstanding transmissions. I will never give up my muncie M21.
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post #11 of 15 (permalink) Old Apr 17th, 11, 12:04 AM
Aaron
 
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Re: Engine Build Questions

Alright thanks for the help, this is my first project car or is going to be im just trying to get ideas lined up before the starting, im gonna go look that up now thanks alot.
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post #12 of 15 (permalink) Old Apr 17th, 11, 02:27 AM
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Re: Engine Build Questions

Instead of spending a fortune on the AFR heads, buy edelbrock heads ($1000 cheaper).

With the money saved buy a used 454 block, install new pistons and build a 427.
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post #13 of 15 (permalink) Old Apr 17th, 11, 04:32 AM
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Re: Engine Build Questions

yep i agree on 454 or 468--you will be much happier with money spent--need to get to 10 -1 comp for that cam or better---and a 830 annular carb--they work awesome with a heavier car and throttle response
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post #14 of 15 (permalink) Old Apr 17th, 11, 09:02 AM Thread Starter
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John
 
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Re: Engine Build Questions

Quote:
Originally Posted by Nashville Beth View Post
Instead of spending a fortune on the AFR heads, buy edelbrock heads ($1000 cheaper).

With the money saved buy a used 454 block, install new pistons and build a 427.
My buddy has a 427 block in his garage he will sell me. Why not build up my 396 with the CAM, lifter and Head selection at the beginning of the post?
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post #15 of 15 (permalink) Old Apr 17th, 11, 05:36 PM
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Re: Engine Build Questions

What nashville said on the 454 but take it 60 over and make it 468.
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