List:
Can anyone help me understand compression ratios and head thickness? I have
a '69 with engine #cc26944HE. The compression ratio of pre 1972 models is
stated to be 8.5 to 1. According to the TR Repair and Operation Manual the H
in this serial number is for high compression. I have a core engine
#cc53580E. The head from this core engine measures the same thickness as my
'69's head.
Question numbers one and two:
Are these two engines of the same compression ratio, or were compression
ratios changed by differences in the pistons?
If they are the same compression ratio, what does the H in the serial number
of my '69's engine stand for?
Question number three:
How do I determine how much to skim from these heads to increase the
compression ratio by a set amount. I would like to bring it up to 9.5 to 1.
Thanks for any insight provided.
Neil Wehmeyer
ngwehmeyer@attbi.com
CC26859L
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