thanks for all the support i wasnt expecting so many replies but i shall try to address questions.
My engin has aftermarket rotating assembly all forged with replaced forged main caps and larger studs. It has aftermarket high flowing cylinder heads.
As a result of a jesel rocker break i...
My ls2 motor (turbocharged) has a main bearing clearance of 2.2 thousnaths I have been running castrol gtx synthetic 5w40 a recent teardown inspection at 8000 miles showed either heat or scuffing on the bearings. I want to go thinner but worry about oil film crush. what to do?