Holley Aluminum Chev LS Series Rocker Covers # HO241-176 Rate_20 75" Pilot Diameter: 5/8" 3/4"

75" Pilot Diameter: 5/8" 3/4"

They are made from High-Silicon-Moly ductile iron

Stepped acceleration Chamber Increases Exhaust Gas Velocity and Maximum Flow

Valve Cover Mounting Style:Perimeter bolt

Holley Aluminum Chev LS Series Rocker Covers # HO241-176 Rate_20 75" Pilot Diameter: 5/8" 3/4"Holley Aluminum Chev LS Series Rocker Covers # HO241 176 Cast Aluminum LS Valve Covers with Coil Mounting Base Integrated Coil Cover Features: Cast aluminum 2 Piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies Retain the performance of factory coil on cover ignition without the unsightly styling Coil cover features vintage valve cover styling with a prominent GM Licensed Chevrolet script logo and cast in wiring