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

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Old Dec 24, 2002 | 01:44 AM
  #1  
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Default ZZ4

I have a chance to buy a new ZZ4 crate engine for my '87. Will the L98 TPI setup kill the potential of this engine?
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Old Dec 24, 2002 | 01:48 AM
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Default Re: ZZ4 (Micky T)

:yesnod: yep
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Old Dec 24, 2002 | 01:51 AM
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Default Re: ZZ4 (Micky T)

The way I think of it is, well the ZZ4 must have better flowing heads a better cam, and a higher compression ratio. This all adds up to more power, but with a TPI, I dunno that probably will effect it in just crushing your engines performance. Just replace it with a MPFI system, just get the intake you dont need the computer.
If you go to tps or tpis.com they got an intake in the fuel department thats only about $900 and you add you fuel injectors for you application and some other parts to it and your done. ;)
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Old Dec 24, 2002 | 01:54 AM
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Default Re: ZZ4 (chucks88)

:yesnod: yep
if you do a zz4 at least buy some long tubes and a big base when you install it. the runners and plenum porting you could do at a later date if it's budget restricted.
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Old Dec 24, 2002 | 01:57 AM
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Default Re: ZZ4 (Micky T)

Yes the TPI will destroy those numbers that GM says the ZZ4 will make.
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Old Dec 24, 2002 | 09:24 AM
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Default Re: ZZ4 (Micky T)

:yesnod:
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