Description

TCS 6L80/6L90 1-2-3-4 Billet Piston

GM 6L80/6L90 1-2-3-4 pistons commonly crack due to cantilevered stress on the cast material.

The OE part has been through several revisions in an attempt to correct this, but all OE versions are still chronically known to crack.

TCS now offers our own bullet-proof billet 6061 aluminum piston to remedy the weaknesses in the OE design.