Clevite M77 Main Bearings - GM LT

Clevite H-Series main bearings were developed primarily for NASCAR racing, but are well suited to other types of competition engines as well.m They’re especially good for engines that run at medium-to-high revs.  They have steel backings with carefully selected overlays and a high crush factor, plus a medium level of eccentricity.  H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating. 

Clevite H-Series performance bearings have a medium level of eccentricity, high crush, and a hardened steel back and thin overlay.  These bearings are made without flash plating for better seating.  Use H-Series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range.

About Livernois Motorsports

Livernois Motorsports & Engineering has become best-known for revolutionary tuning and high-end performance products for late model Ford, Mopar and GM vehicles. The company is proud of its deep roots in the automotive and motorsports industry dating back to its original founding in 1949. Since then the company has expanded its product line to include tuning and performance components for desert racing, SCCA and drag racing. Livernois Motorsports is proud to engineer, test and manufacture its products in the USA.

• Manufactured from cast copper-lead, increases fatigue strength by approximately 20% compared to powdered metal processes, referred to as sintering, which is used by the competition
• H-Series bearings are narrowed for greater crankshaft fillet clearance
• All H-Series bearings are made in Atlantic, Iowa USA
• High crush for better seating and retention
• Un-plated hardened steel backing for better dimensional accuracy and bore contact