Dress up that old 12 valve with our billet aluminum individual valve covers! With extra clearance for valvetrain and studs, they will fit perfectly on your daily driver or hotrod! They are roughly .250 taller than the factory covers. We have tested these to fit without grinding or milling on ARP and A1 studs applications. One of the best features that we have incorporated is the O-ring seals to eliminate the messy factory valve cover gasket! Includes all-new stainless socket head bolts.
Add a little attitude to your Cummins billet valve cover! These fill caps are designed to work with our billet Cummins valve covers, HOWEVER, THEY WILL ALSO WORK ON A FACTORY 03+ COVER !! We have taken actual 44 Mag casings and pressed them into a billet CNC machined fill cap!