Head Gasket Question
I'm in the midst of a cyl head swap (383) -
When my engine was built the final cylinder hone was done with a torque plate and a Fel Pro 1043 .039 head gasket. The block got a clean-up cut only on the decks, pistons are .026 in the hole, measured with a dial indicator. I ignored his advice at the time and used a Victor 5746 @ .026 for about 10 years, to get a CR of 9.45:1
My old heads were listed @ 62 cc although I didn't cc them. The new heads are 64 cc. - not gonna cc them either.
With the same Victor gasket I'd go to 9.25:1 , and with the .039 Fel-Pro I'd go to just a hair over 9:1. With a Fel-Pro 1094 (coated shim) I'd get right back to 9.45:1. The 1094 would give the most ideal quench @ .041, although I'm not sure how important quench is on a motor of 9 -9.5:1 CR.
I'm probably obsessing over a half point of compression. My question has more to do with distorting the bore by using a different head gasket than the one the final torque plate honing was done with.
What do you guys recommend? Thoughts on bore distortion? All thoughts much appreciated.
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