COMP Cams 23-710-9 Xtreme Energy 224/230 Hydraulic Roller Cam for Chrysler 383-440 3.55-4.10 gear, 2000 stall in 440, 2200+ in 383, 9:1 compression, high performance street. 1,800-5,800 RPM Operating Range 224/230 Duration at .050". 110 Degree Lobe Separation Angle .538"/.534" Valve Lift Excellent performance in street carbureted applications. Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve. More vacuum allows an increase in duration for improved performance and assists power brakes. Best performance with aftermarket intake manifolds, headers and lower gear ratios. Fits Chrysler 383-440. Has 3 Bolt Camshaft Bolt Attachment