LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Headers, tb and a cam????

Old Jun 11, 2007 | 06:39 PM
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Default Headers, tb and a cam????

I currently have an automatic 95 Z28 with about 135,000 miles and runs great (no concerning sounds of any kind) . The tranny was rebuilt approx. 900 miles ago with new b&m shift kit and trq conv. The car has k&n cai and jetchip stage 2. The exhaust has stock y and manifolds, minus the cat which goes in to a flowmaster.

Next mods are pacesetter longtubes (emission pump removal and new plugs/wires), 52mm throttle body with air foil and tb bypass.
First question is whether the headers and tb are worthy of being my next mods and how much hp?

Second question is whether or not i should install a cam and get a tune after the previous mods. What cam would be suitable for this engine for the most hp, but still safe enough without a rebuild. Will all this air call for bigger fuel injectors if so how big? How much hp will this bring me to.
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Old Jun 11, 2007 | 06:41 PM
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What kind of converter is in the car?
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Old Jun 11, 2007 | 09:25 PM
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def not bigger injectors yet i have hot cam kit headers intake true duals and i have stock injectors
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Old Jun 12, 2007 | 11:02 PM
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Just a stock converter in the tranny
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Old Jun 12, 2007 | 11:06 PM
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Im hopin to bring it up to a 400-450 hp (although more is always better) fairly comfortable daily driver
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Old Jun 12, 2007 | 11:10 PM
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headers and tb will put about 285 to 300 rwhp
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Old Jun 12, 2007 | 11:27 PM
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is my car ready for the bigger throttle body seeing as how my intake manifold is stock
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Old Jun 12, 2007 | 11:31 PM
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yes some get the 58mm and put it on a self ported intake while it is still on the car and see good gains. chek out bfrankers home page...google it and look at his
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Old Jun 12, 2007 | 11:40 PM
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any suggestions for the header install, dont really care about the stock manifolds just wanna get em off and put the headers on... will i need a smaller belt since im taking off the emissions pump
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Old Jun 13, 2007 | 02:50 AM
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Originally Posted by projekt70chevelle
any suggestions for the header install, dont really care about the stock manifolds just wanna get em off and put the headers on... will i need a smaller belt since im taking off the emissions pump
the air pump is electrical, no need for a smaller belt
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Old Jun 13, 2007 | 07:23 AM
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you are gonna have to do quite a bit of port work heads and intake to get 400-450 at the wheels, and a big cam, not so sure if you would want it to be a dd.
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Old Jun 13, 2007 | 07:24 AM
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longtubes are a must have for lt1's
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Old Jun 13, 2007 | 07:24 AM
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o and get long tubes if you dont have clearance issues, and pascesetters are budget and kooks are top of the line
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Old Jun 13, 2007 | 09:41 PM
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deff. goin with the pacesetter longtubes, any suggestions on an easy way to get 'em in there??? Also.. would 1.6 roller rockers be a good idea (what are some good sites to find the rockers, cam, etc.)
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