Originally Posted by 73DAD
Originally Posted by Cab_Burge
Measure the thickness of the outer head bolt bosses and see how thick, tall, they are now and please post them.
I'll bet a nickel they are closer to .960 to.950 now than they where new scope up


........What do you guys suppose unmilled open chambers cc at? 95?? 100??


From the factory in 1967 -9, or in 2021 after 120,000+ miles and a valve gind or two. Some folks seem to think these are the same.