1988 IROC 5.7 car,5.0 car any differences?
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 836
Likes: 0
From: Pgh PA
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
1988 IROC 5.7 car,5.0 car any differences?
Besides the engine displacment and the 9bolt rear is there any difference in spring rate sway bars etc? I may be buying a 5.0 replacement for my stolen and totalled 5.7 88
Joined: Feb 2007
Posts: 4,770
Likes: 64
From: Trumbull CT
Car: 87 TA clone
Engine: 70/70 Turbo 5.3 LS
Transmission: bullet proof 2004R
Axle/Gears: ford 8.8, 3.55 gears
Re: 1988 IROC 5.7 car,5.0 car any differences?
depends, 5.7's came with oil coolers etc, they mite have higher spring rates depending on packages and also the 5.7's had the most beefy stuff they had at that time, the 9 bolt/700r4s and the sway bars/rear disks etc.
Supreme Member
Joined: Jul 1999
Posts: 2,149
Likes: 4
From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
Re: 1988 IROC 5.7 car,5.0 car any differences?
I have owned my '87 5.7 liter IROCZ since it was brand new. The 5.7L IROCZ cars had to have the oil cooler, 9 bolt rear end, 4 wheels disc brakes, and the 700R4 tranny. The 5.0 cars came with the 10 bolt rear and could be purchased with either the 700R4 or the weak 5 speed.
I dont know if this helped you any.
I dont know if this helped you any.
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