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350 Engine Swap

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Old Sep 18, 2012 | 08:12 PM
  #1  
blown-z's Avatar
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From: michigan
Car: 1989 iroc-z
Engine: supercharged 305
Transmission: automatic
Axle/Gears: 3.73
350 Engine Swap

I plan on replacing my 305 from my 1989 iroc-z with an L98 350 from an 1990 vette. A local shop told me i need to purchase a F.A.S.T programable computer module to be able to tune the engine. Is that the only way to go? Any suggestions would be appreciated
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Old Sep 18, 2012 | 08:17 PM
  #2  
sofakingdom's Avatar
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 350 Engine Swap

No.

All you need is the injectors, knock sensor, and PROM for a 350, with the same injection type that you have (TBI or TPI).

One could argue that a FAST or similar would be "better" in any number of ways than a stock something or other; but that's not the same as "need".
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Old Sep 19, 2012 | 05:33 PM
  #3  
cprmn14's Avatar
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From: Dixon, IL
Car: 91 RS
Engine: LTwon
Transmission: T-56
Axle/Gears: Both
Re: 350 Engine Swap

The stock ECU from the 350TPI should work with a flash tune
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