Chevy BBC 454 Nostalgic Finned Aluminum Valve Covers - Tall w/ Hole They are ground and thread-rolled

They are ground and thread-rolled after heat treatment to ensure the exacting tolerances that Speedmaster requires for all of their fasteners

Speedmaster harmonic balancers are crafted from high-quality steel and feature a tuned elastomer for optimal engine performance

Add a custom look to your engine without breaking the bank with timing covers from PCE

Dual distributor hold downs and Four corner water ports

Speedmaster timing tabs are precision-manufactured and bolt on using your existing timing cover bolts

Chevy BBC 454 Nostalgic Finned Aluminum Valve Covers - Tall w/ Hole They are ground and thread-rolledDo you want to finish off your engine in style? Try a set of these Speedmaster finned aluminum valve covers. They are manufactured from cast aluminum and have a polished finish. Speedmaster finned aluminum valve covers feature a classic raised, finned design that adds a unique look to your engine. If you don't want any breather holes drilled, no problem they are offered with breather holes or without any holes. Speedmaster finned aluminum valve covers