I have several engines with Ros pistons, I think there alloy(piston skirts ) is very soft Especially their close tolerance alloy I'm using Diamond pistons now with their close tolerance alloy with a lot better results On second thoughts maybe Ross alloys are to hard Resulting in scrathing up the cylinder walls and piston skirts
Last edited by Cab_Burge; 12/29/1012:24 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
) is very soft 
Especially their close tolerance alloy 
I'm using Diamond pistons now with their close tolerance alloy with a lot better results 
On second thoughts maybe Ross alloys are to hard 
