LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

prepping LT-1 lower for forced induction

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Old Mar 24, 2003 | 09:39 PM
  #1  
ScCo's Avatar
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prepping LT-1 lower for forced induction

I'm considering going with a supercharger on an LT-1 from a 95 z28. I've done searches, and the general consensus tends to be that LT-1's suck in their stock condition for being ran with forced induction units.

So, if I went for a 383 stroker kit using dished hypereutectic pistons, h-beam steel rods, and a scat crank, would I have a bottom end that would survive well with up to 9psi boost?

Seems like the lower compression ratio from the dished pistons and the parts from stronger materials would serve well, but I was hoping someone here might have some experience with a similar setup to let me know how it works.

If you have any experience with a similar setup, what kind of power could be expected with the built up/stroked bottom end, stock upper, stock heads, 9 psi charger, headers, better exhaust?

thanks
Old Mar 24, 2003 | 11:36 PM
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I would suggest in a Forged 355 setup. Forged pistons, rods, and crank. Also get the 355 if your going to boost because it will like the high revvs better (personal opinion). Atleast get forged pistons of your going to boost.
Old Mar 25, 2003 | 05:05 AM
  #3  
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You will be better off posting this in the forced induction forum. In addition, you need to be more specific about your questions in the last paragraph. A lot depends on your budget and goals for the car (daily driver, need to pass emissions, etc.).

Anyway, avoid hypereutectic pistons. What you want is a forged piston. The different alloys used for forged v. hyper pistons are much more tolerant of the pressures and temperatures encountered in a forced induction application.

Strongly suggest reposting to Forced Induction for better answers.

Rich Krause
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