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

When you're rebuilding the bottom end of your engine, getting the right main bearings is crucial for long-term reliability. This Clevite Tri Armor main bearing set is designed for a wide range of GMC passenger and truck applications, specifically those equipped with 366, 396, 402, 427, or 454 cubic inch V8 engines. These bearings are essential for supporting the crankshaft and ensuring smooth rotation within the engine block.

What you get in this set is a complete main bearing kit, featuring Clevite's advanced Tri Armor coating. This specialized coating is applied to help reduce friction and improve wear resistance, which is especially important in high-stress engine environments. The bearings are well-built to handle the demands of these larger displacement engines, helping to maintain proper oil clearance and protect your crankshaft from damage. This makes them a solid option for engine rebuilds where durability and performance are key.

Proper installation is key to getting the most out of these bearings. Ensure your crankshaft journals are clean and within factory specifications, and always refer to the manufacturer's installation instructions for precise details on oil clearance and assembly procedures.