Sifton WR/KR Cam Lobe Set

Sifton WR/KR camshaft lobe set includes four lobes. Features KR lobe profile that fits "W + G" 45" motor. Also works in WR but requires roller type tappet assembly. Camshaft cores are not included. For 45 side valve models.
To be installed on original cams WL type. Must remove old cam lobe and degree in to correct position, then weld into place. Set is for use with 45" Flathead engines only, and will not work on 74" and 80" UL engines. Intakes are .415 lift, 300° duration. Exhausts are .400 lift, 275° duration. *NOTE: These are hi-lift full race. Sold as a set of 4 and are not for use with flat type tappet. Can only be used with roller type tappet.