The only failures LPE have seen with the factory GM rockers on the LS engines is an occasional needle bearing falling out and turning up on the magnetic drain plug. This product from Comp Cams will upgrade your LS engines rocker arms by replacing the stock bearings with these heavy duty roller bearing assemblys.
Replaces OEM powdered-metal trunion with stiffer more durable 8620 steel alloy material Factory needle bearings replaced with caged roller bearings to increase rigidity & reliability Designed for circle track & drag racing classes where stock engine components are mandated Performance-proven & tested in NASCAR GM LS spec engine series
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