Muscle Series Valve Covers for small block Chevy engines-Black Finish - 241-135 crew-cab Increases performance by eliminating a

Increases performance by eliminating a common boost leak

and concept vehicles

1980-1987 GMC Jimmy 305 CID

BLC-140-SS2I

1995-2010 Harley-Davidson Dyna Super Glide FXD/I

Muscle Series Valve Covers for small block Chevy engines-Black Finish - 241-135 crew-cab Increases performance by eliminating aOverview: Holley is pleased to introduce their Muscle Series Small Block Chevy valve covers inspired by 1970's era GM factory L82 LT1 Z28 equipped engines. These valve covers are a continuation of Holley's Vintage Series valve cover line featuring a classic finned design and retro styling cues. Each set consists of one valve cover with a twist in oil fill knockout (oil fill cap included) and one with a recessed area to place an adhesive backed Holley