350 Swap
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 6
Likes: 0
From: Arkansas
Car: '90 IROC-Z T-Top
Engine: 305 TPI
Transmission: Auto
350 Swap
Hey guys, just a quick question. I have a stock ‘90 IROC, 305 auto w/ factory t-tops. Can I swap the 305 for a 5.7 and leave everything else stock (except wiring, computer)? Will upgrading to the 350 cause any issues elsewhere in the car? Thanks!
Supreme Member
Joined: Oct 2004
Posts: 4,526
Likes: 238
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 350 Swap
New computer prom, injectors iirc the rest is the same. As long as it is a factory 350
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