Clevite Tri Armor GMC Pass & Trk 366/396/402/427/454 Main Bearing Set

This product is a Clevite Tri Armor main bearing set, designed to fit a wide range of GMC passenger and truck engines, specifically those with 366, 396, 402, 427, or 454 cubic inch displacements. These bearings are a crucial part of your engine's rotating assembly, supporting the crankshaft and ensuring it spins smoothly within the engine block. Proper main bearing function is essential for engine longevity and performance.

The Tri Armor coating on these Clevite bearings is a notable feature, offering improved wear resistance and reduced friction compared to standard bearings. This advanced coating helps protect the bearing surface from the harsh environment inside your engine, especially during startup and under heavy load. This means better protection for your crankshaft and a more durable engine build. They are well-built to handle the demands of these larger displacement V8 engines.

When rebuilding or repairing an engine with a 366, 396, 402, 427, or 454ci V8, a quality main bearing set like this Clevite MS909HX is a solid option. Always refer to your vehicle's specific service manual for detailed installation procedures and torque specifications to ensure a proper rebuild.