Valve covers
Thread Starter
Supreme Member
Joined: Oct 2003
Posts: 1,083
Likes: 4
From: DFW
Car: 1992 Z28
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: G80 3.23
Valve covers
So the grey paint, or whatever, is all peeling and rusting. I bought a set of proforms. Is it me, or did GM in 1990 do a little switcharoo on the covers? Like move the oil filler to the front, and PCV to the back. Cuz bolt holes dont line up.
Supreme Member
Joined: Apr 2010
Posts: 1,198
Likes: 126
From: Armstrong B.C.
Car: 1991 camaro Z28
Engine: Forged 370" LS turbo s488
Transmission: Built 4L80e FTI converter
Axle/Gears: MWC 9" 35 spline 3.25 gears
Re: Valve covers
So what does the oil fill and pcv have to do with bolt holes??
Joined: Oct 2001
Posts: 12,221
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Valve covers
Yes, GM moved things around on driverside.
Proform is a generic cover designed to fit custom setups.
Proform is a generic cover designed to fit custom setups.
Joined: Jan 2023
Posts: 114
Likes: 75
From: Vancouver Island, 🇨🇦
Car: 1989 RU7 1LE / 1997 RS
Engine: 305 TPI / 3800 Series III
Transmission: T5 / T5
Axle/Gears: 3.45 / 3.23
Re: Valve covers
GM moved the oil fill to the front in '90, however '89 R7U cars had the oil fill on the front as well.
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