Vette prom
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Junior Member
Joined: Jan 2001
Posts: 62
Likes: 0
From: Washington NC
Car: 1989 Iroc-z
Engine: 1998 L31 350
Transmission: 700 R4
Vette prom
Can I use an 89 vette prom in my 89 iroc? I wouldn't think there was much of a difference? Thanks
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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right
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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right
Member
Joined: Jul 1999
Posts: 269
Likes: 0
From: SE, NY, USA
Car: 1988 Vette; 1988 IROC Z-28
Engine: 350cid; 305cid
Transmission: 700R/4; 700R/4
Axle/Gears: 2.59; 2.77
The only possible issue might be timing, since the '89 Vette has the #113 Al heads that run a little looler than the iron. If you want a killer, port a set of these heads and plumb in an external EGR tube like the Vette uses.
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1986 IROCZ-28 Site
Best Times:
60'=1.92sec, 1/4mi=14.42sec @93.99mph in 65deg temp
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1986 IROCZ-28 Site
Best Times:
60'=1.92sec, 1/4mi=14.42sec @93.99mph in 65deg temp
Thread Starter
Junior Member
Joined: Jan 2001
Posts: 62
Likes: 0
From: Washington NC
Car: 1989 Iroc-z
Engine: 1998 L31 350
Transmission: 700 R4
I didn't think there was a lot too swapping the chips. I just figured, I could use the factory chip as a guinea pig when I started burning my own. Thanks a lot for your help.
------------------
1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right
------------------
1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right
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