Piston, for 90~92 ZR-1 LT5. Unit quantity is one (1) piston. Eight (8) pistons are required per engine.

NOTE: This is a USED, GM OEM piston, manufactured by Mahle. Complete with piston pin & pin retainers.  Piston rings are NOT included.  Pistons are usually available with both "A" & "B" markings, but subject to availability.  Please contact us to insure your preference is available.

Pistons have been cleaned sufficiently of carbon to see the "A" or "B" stamp.  Pistons have been measured and found to be within 0.001" of new piston skirt diameter.  Ring grooves were checked for proper ring side clearance.  Piston pins were kept with the corresponding piston and fit checked ok.  As with any engine component, final cleaning is recommended to insure no foreign material is present before installation.