3500 4x4 Pickup L6-359 59L DSL Turbo Cylinder Block Assembly Pistons
Piston: Description and Operation
PISTON AND CONNECTING ROD ASSEMBLIES
Piston features include: high swirl combustion bowl cast aluminum body and 3 ring grooves. The piston for the turbocharged engines includes a
hi-resist insert with a keystone profile for the top piston ring. Always check the part number to be sure the correct configuration is used during
piston replacement.
The piston ring sets consist of three rings, the top ring of the set has a keystone profile which operates in a ni-resist insert cast into the piston.
A free floating, hollow piston pin is used to attach the piston to the connecting rod. Lubrication of the pin and journal is accomplished by residual
spray from the piston cooling nozzles.
