LSR Cathedral Port 231/239 Hydraulic Roller Cam for GM LS GEN III/IV Chevrolet Essential for supporting aftermarket control

Essential for supporting aftermarket control arms

our cross member is designed to tuck tight against the vehicle chassis and will not effect vehicle ground clearance

GM has this feature laced into the engine calibration files and would require full ECM tuning to enable cruise again

The large lug on the cradle side of the braces positively locates the cradle

larger intake valves and refined bowl blending for improved flow

LSR Cathedral Port 231/239 Hydraulic Roller Cam for GM LS GEN III/IV Chevrolet Essential for supporting aftermarket controlVery wide power range and excellent mid range torque for LS engines with cathedral port cylinder heads.