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Very Strong from Mid-Range to High End Torque

Comp Cams Hydraulic Roller 235 / 243 .621/.624 113 LSA, Very strong from mid-range to high end torque and horsepower for LS engines with cathedral port cylinder heads. RPM range from 2200 to 7200.

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 radial street performance and all-out race applications, these aggressive profile cams take advantage of today's newer and better flowing aftermarket cylinder heads. The Comp Cams LSR Camshafts feature higher durations 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 radial street & all out race engines ? Broadest powerband & 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 $26926 Ultra Dual Valve Springs ? Three-bolt timing gear cams as found in many GM LS1, -2, -6, & -7 engines LS/R Cathedral Port 3-Bolt Cams (All Out Power for 5.7L - 6.2L)