Chevy BBC 454 Polished Ribbed Aluminum Valve Covers - Tall w/Hole These coils feature advanced bobbin

These coils feature advanced bobbin technology

They are designed for stock or mildly modified engines for the value-conscious buyer

use Speedmaster cast iron cylinder heads

and 3/8 in

Speedmaster K1045 steel enclosed elastic dampers are tested to 12

Chevy BBC 454 Polished Ribbed Aluminum Valve Covers - Tall w/Hole These coils feature advanced bobbinDo 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