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Cylinder head help
Posted: February 20th, 2012, 1:18 pm
by kevin_s
Ok,I'm building an 86 engine,the cylinder head i have is off an 98.
Can I use the 98 head on the 86 engine if I use the later thin head gasket,or will i still be down on compression?
Posted: February 20th, 2012, 8:04 pm
by Roostius_Maximus
It will have the same compression as the head you use. 98 on 98 gasket will give the compression of the 98.
Cylinder port timing and the lack of scallops in the exhaust will give a pinch more. Nothing to worry about
Posted: February 21st, 2012, 4:35 am
by kevin_s
Ok,thanks Adam.
Posted: February 22nd, 2012, 4:37 pm
by seanmx57
Me thinks it won't run as good as a 86 would with the right head.........
Posted: February 22nd, 2012, 6:24 pm
by kevin_s
seanmx57 wrote:Me thinks it won't run as good as a 86 would with the right head.........
I have not cc any 500 heads but the look pretty close when they have their respective head gaskets.
86-thick head gasket
98-thin " "
anybody have any cc # handy for the two heads?
Posted: February 22nd, 2012, 6:34 pm
by seanmx57
Adam had pics up somewhere that showed the smaller dome on the 85/86 head.