Overview Reviews Product Description Camshaft - Xtreme Energy - Hydraulic Roller - Lift 0.521 / 0.521 in - Duration 270 / 276 - 110 LSA - 1800 / 5400 RPM - Big Block Ford - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × COMP CAMS COMP CAMS BBF Xtreme Energy Hyd Roller Cam XR270HR-10 COM34-422-9 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *