ARP Valve Cover Bolt Kit 12 Point Duramax 6.6L lb7 00131409BINR This item will only fit 35 17006M This item will only fit aFe Magnum FORCE Intake Systems PN: 51 12182 54 12182 51 12192 54 12192 75 12192 51 12642 54 12642 52 12642 1HAdvanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components This ultra lightweight glove is built with minimal external stitching and has expanded to include virtually every fastener found in an engine and driveline Many professional engine builders prefer to use studs because of their ability to properly position the gasket and guide the cover into position