In process machining new shortblock and the question of decking the block came up. The builder thinks as long as we keep it under .060 and over .050 total that is a safe place to be.

Reading engine masters articles they seem to try to keep it under .040 to prevent detonation.

Has anyone run both a larger squish and a smaller and noticed a difference in how detonation prone a motor is.

Cheers

John

 

Is this an LS, LT or other?

I like a maximum of .040, and prefer .030-.035 on a 4in bore LT1 with steel rods and 7k redline.

 

Its an LT1 with a 3.875 stroke, I did not want to zero deck the block.
It costs so much to prep a block with the splaying that I would like to leave as much meat as possible.

If I go with a .052 will it be that miuch more detonation prone than a .040.

John