Originally posted by Twisted6 I.I #3220:
...And as bad as Our L6 chevy head bolt pattern is It has me woundering If it could have any benfit in keeping the Head gasket in place Better while running the higher compression rates??????...
I’d like to know if the gasket always blows out in the same area. Is it in the squish area?
As for cutting grooves an a head that has a deck thickness of 0.100” it’s out of the question, a failed deck is sure to follow.
On my suburban I shaved 0.050” off the head to get the compression to 10:1, the deck thickness was still 0.210”.
I cut the grooves 0.040” deep; meaning at the bottom of the groove the deck is 0.170” thick.
Suburban
