3.4 mahle Deck Clearance
 

Hi. Im installing 3.3-3.4 turbo mahle piston set. 7.7:1. ps98-009 into 79 930 case.

What should the deck clearance be for the P&C?

Also, I noticed that the height of the cylinder from base flange to the top is about .5mm smaller than the stock cylinders. Why?


thanks

Recently just put a 3.4 together and deck height was set to 1.25mm (set to .050") at a measured compression ration of 7.34:1. car also had a bigger charger on it. Set it a little on the tighter side for more power. Factory spec is 1.25mm - 1.5mm