Burton mahle pistons, machined wider bowl and 1mm lower piston height to clear high lift cams. Approx compression on 2wd 7:2:1 - 4x4 7:4:1.
Second hand, but with very little mileage and in excellent condition. Standard bore size and complete with rings and gudgeon pins.
I bought these from Tony@Turbosystems and are for sale due to change of plans..

SOLD