C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Winter project

Old Oct 9, 2009 | 06:15 PM
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Tulsa Vette Guy's Avatar
Tulsa Vette Guy
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From: Tulsa OK
Default Winter project

Winter project

Up grades for more H.P. I am planning an upgrade this winter for my 87 C-4, L98,
I do not want to go into the motor at this time, But this is what I want to do,, any comments or any thing else that should or could be done on a limited budget??

Plenum Mega ported to 58MM, and polished-----------------Ported by
SLP Runners Mega porte
Edelbrock base
58MM throttle body
Vortex cold air intake
Crosa Exhaust system, from headers back.

Do not know the H.P. gain ?? any Ideas?


Porting will be done by http://corvetteplenum.com (Mike)

I do not have all my costs yet, But when I do, I will post it.

I have read that the Edelbrock base will not fit up with the SLP runners???


Last edited by Tulsa Vette Guy; Oct 9, 2009 at 09:36 PM.
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Old Oct 9, 2009 | 06:22 PM
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Paul Ruggeri's Avatar
0Paul Ruggeri
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From: Carmichael ca
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The plenum and throttle body won't do much with stock runners and base. You need to do the whole manifold to get any real results.
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