K 1500 Truck 4WD V8-5.7L VIN R (1997)
Piston: Description and Operation
The pistons are cast aluminum that use two compression rings and one oil control ring assembly. The piston is a low-friction, lightweight design with a
flat top and barrel-shaped skirt. The piston pins are chromium steel. They have a floating fit in the piston and are retained by a press fit in the connecting
rod assembly.
