LS1 Comp Cams LSR Cathedral Port Cam (227/235 113LSA) 4.8L-5.3L

Over three years in the making, the new COMP Cams® LSR™ Camshafts are a new line-up of hydraulic roller camshafts featuring our most modern lobe designs for popular GM LS engines. Designed specifically for radical street performance and all-out race applications, these aggressive profile cams take advantage of today’s newer and better flowing after market cylinder heads. The COMP Cams® LSR™ Camshafts feature higher exhaust duration and overall lift, making them the right choice for engine builders looking for the most advanced camshaft designs you can purchase in an off-the-shelf cam.

• Increased exhaust duration & overall lift for radical street & all-out race engines
• Broadest power band & most top-end power of any LS cams ever created by COMP®
• Modern, aggressive lobe profiles – more aggressive than XFI™ Cams
• Performs well with both cathedral & rectangle port GM LS cylinder heads
• Designed specifically for use with the new #26926 Ultra Dual Valve Springs
• Three-bolt timing gear cams as found in many GM LS1, -2, -6 & -7 engines

Int. 227 Ext. 235 Lift Int. .614 Exh. .621 LSA 113°

Made specifically for 4.8L-5.3L LSX Engines