COMP Cams 08-409-8 - CamShaft, CS X4 258HR-11

COMP Cams Xtreme 4X4 X4258HR-11 Camshaft for Small Block Chevrolet Carbureted Engines Originally Equipped with Hydraulic Roller Cams Hydraulic Roller - Xtreme 4X4: Strong torque, good mileage for stock to mildly modified engines. Hydraulic Roller - Xtreme 4X4: Strong torque, good mileage for stock to mildly modified engines.; 258/262 Advertised Duration, 206/210 Duration .050", .458"/.458" Lift, 111 Lobe Separation; 1000 to 5000 RPM range; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;