Coolant plug to eliminate the coolant riser tube coming off of the rear engine cover on your LML Duramax. This allows you to eliminate the coolant tube to make more room under the hood or just simply clean up under the hood! This is needed in most applications when using S300 or S400 turbos or when doing a compound turbo setup. Includes high temp silicone o-ring for a long-lasting leak-free seal.
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.