In this area of any production iron head ( as in my first photo)I have always found to be .300” plus or minus .020” if the head(s) have not been milled .
If the heads have been run you should aways see minor rust pitting around the heads water passage holes in the deck, if not then that’s a sign that they have been milled.
The factory machining of the chamber is very
Accurate.
This means that if you CC one chamber in each head and then measure it’s depth as in my second photos, checking the depth of the other chambers in the same manor makes things easy.
If the depth of all the other chambers are .006” or less in variation then all of you chambers will be between 1 to 1.5 CC of each other.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
Last edited by steve25; 01-18-2024 at 04:35 PM.
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