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Posted by Kaegi [24.16.253.154] on Sunday, December 02, 2012 at 13:32:37 :
In Reply to: I see casting #s in description. posted by Chris Case [75.36.45.84] on Sunday, December 02, 2012 at 13:19:39 :
I agree the 891 head is the higher compression head. much smaller combustion chamber than the other. the curve over the piston are is more pronounced reducing chamber sze and the fit around intke is way tighter. smaller chamber = higher compression
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