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Head intercange
Posted by carl (more from carl) on Fri, 2 Jan 2004 06:13:02
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Will a 87 900t head work on a 89na?
And will a 91/92 900na 2.1 head work on the 1989na?
Posting for a friend.
Anybody have a FAQ on this?
My understanding is...
1985/1986 turbo head swap w/ eachother w/o problem.
and 1985/1986 head on 87-93t will work but raise the compression (how much I don't know) so probably not a good idea. The 1987-1993t will go on the 1985/86 and lower the compression.
1987-1993 will swap w/o issues.
the NA 2.1 head will fit on 1985-1993 with compression changes (again, don't know how much) the 2.1 flows a lot better than the 2.0 head.
When you put a 2.1NA on the turbo do you have to change valves (esp exhaust) and cams to work w/ the turbo engine?
Thanks - Carl
posted by 24.98.246...
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