Trans-Dapt Heavy Duty Valve Covers - Gasket - 5/16" Thick 20601M All Performer and Performer RPM

All Performer and Performer RPM B/B Chevy heads have spark plugs relocated closer to center of bore which will interfere with high-dome pistons for open chamber heads

6-1/2 x 4-1/4 x 9-3/4 in Oval Body

Three hub styles are available

Choke Block-Off Pad

What is bump steer

Trans-Dapt Heavy Duty Valve Covers - Gasket - 5/16" Thick 20601M All Performer and Performer RPMTrans Dapt Performance 5 16" Thick Valve Cover Gaskets (Cork), Ford V8 260 289 302 351W These 5 16" FAT gaskets are manufactured using a premium Cork Rubber Nitrile compound. The added height of these gaskets provides more clearance for tall rocker arms. Sold in pairs. Do not use these gaskets for Hamburger's Econo Series Oil Pans! Will cause pan flange damage. Trans Dapt Heavy Duty Valve Cover Gasket 9646 5 16" Thick Cork Rubber Nitrile Feature An