GREX forged pistons are made from a low silicon type of forged aluminum to reduce high heat expansion and to withstand high RPMs and high cylinder pressures. The GREX Piston Kit is a must to ensure a "bullet proof" bottom end.
GREX forged pistons are made from a low silicon type of forged aluminum to reduce high heat expansion and to withstand high RPMs and high cylinder pressures. The GREX Piston Kit is a must to ensure a "bullet proof" bottom end.