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Knower of Stuff
1,978 Posts
Discussion Starter · #1 ·
I have listed a link to calculate compression ratio. I know a few people have asked about this and I was also curious.
Hope this provides some useful information for members.
The only info lacking is the bore diameter of the gaskets.
Springer referenced 3.85 bore for a stock 88" gasket and .052" thickness which probably crushes to .045"
Cometic Gaskets are the thickness specified, they specify the crush thickness.
If sombody could provide the bore diameter for a 95" gasket it would be helpful.
FYI other numbers
88" 95"
Bore 3.75" 3.875"
Stroke 4.0" 4.0"
Head CC 85 85
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