Bolt stretch in the Valvetrain of a DOHC application robs power by allowing the cam to lift from the head without opening the valve. Camshaft positioning is critical on overhead cam engines & MMR makes sure that the cam towers are properly secured.
Unlike the factory bolts these MMR bolts are re-usable and are made from 190,000 psi tensile strength material.
Kit includes all bolts and washers to assemble a pair of cylinder heads.
Recommended for all applications with upgraded springs or cams or for simply replacing the 1 time use factory bolts.
Fits all 2011 - 2023 5.0/5.2 cylinder heads