Quote:
Originally Posted by bmcnicho
CHP sells a 6.125"rod length/22cc and a 6.200"/28.9cc rotating assembly. I was leaning toward the latter since it is a slightly higher rod ratio & lower compression ratio. The lower compression ratio should make it tolerant of pump gas. Do you have inputs between the two assemblies?
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With that cylinder head I'd run the 22cc dish. With .010 deck and .041 gasket and the head at 61ccs that's only 10.25:1 compression.
You would lose enough horsepower dropping to 9.62:1 to notice and the 10.25 is livable with the aluminum head.