Differences? 1988 to 1989?
07-20-2007, 12:48 AM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Differences? 1988 to 1989?
I had a 88 5.7 IROC some POS stole it and totalled it. I bought alot of performance goodies for the 88, professionally ported plenum, pro ported 52mm TB, extrude honed Accell SR intake Etc. I was waiting for the larger runners and was going to yank the motor and get it rebuilt before I added all the cool stuff. I just bought an 89 5.7 IROC. What if any will interchange? I know the plemuns and runners are different but what about the TB? Any help is appreciatted. May be having a sale! Thanks
07-20-2007, 09:05 AM
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Car: 89 ws6
Engine: 355 afr195, hsr,gmpp cam, hs rr,
Transmission: t-5
Axle/Gears: 3.08
Re: Differences? 1988 to 1989?
I have some bad news for you about your base manifold. 89 was the first year that the cold start injector was deleted. Your base manifold is not compatible to work with the the cold start injector. Also in 89 GM changed the throttle cable to a better style for less slippage. You can reuse the throttle body but would have to spend the money to get a new cable from gm out of an 88. This is not a straight forward part swap like you were hoping for.
07-20-2007, 02:33 PM
#3
Re: Differences? 1988 to 1989?
Originally Posted by Eagle223usa
...professionally ported plenum, pro ported 52mm TB, extrude honed Accell SR intake Etc. I was waiting for the larger runners and was going to yank the motor and get it rebuilt before I added all the cool stuff. I just bought an 89 5.7 IROC. What if any will interchange? I know the plemuns and runners are different but what about the TB? Any help is appreciatted. May be having a sale! Thanks.
07-20-2007, 11:57 PM
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: Differences? 1988 to 1989?
Thanks, Can anyone tell me where I can buy the Cold start elim kit?
07-21-2007, 09:29 AM
#5
Re: Differences? 1988 to 1989?
Originally Posted by Eagle223usa
Thanks, Can anyone tell me where I can buy the Cold start elim kit?
Edit: Here you go....
07-21-2007, 03:16 PM
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Car: 89 ws6
Engine: 355 afr195, hsr,gmpp cam, hs rr,
Transmission: t-5
Axle/Gears: 3.08
Re: Differences? 1988 to 1989?
Still need the throttle cable they are different for that year. 85-88 are the same and 89-92 was changed.
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