Chevy GM LS 010 Main Bearings [4.8 5.3 5.7 6.0 6.2] stable air flow at any

stable air flow at any rpm

from performance street to competition use

with the performance and durability required to reach the winner's circle

Designed for engines producing up to 500hp

Speedmaster automatic transmission deep pans provide additional fluid capacity and cooling ability

Chevy GM LS 010 Main Bearings [4.8 5.3 5.7 6.0 6.2] stable air flow at anyThese Speedmaster main bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.