COMP Cams LSR Series hydraulic roller camshafts feature modern lobe profiles that take full advantage of high-flowing late model GM cathedral port cylinder heads. They are tailored for a specific rpm range and usage, from torque to high-rpm horsepower. Give your Chevy LS engine a shot in the arm with one of these COMP Cams LSR Series hydraulic roller camshafts.
- Cam Style:
- Hydraulic roller tappet
- Basic Operating RPM Range:
- 2,400-7,200
- Intake Duration at .050 inch Lift:
- 239
- Exhaust Duration at .050 inch Lift:
- 247
- Duration at .050 inch Lift:
- 239 int./247 exh.
- Advertised Intake Duration:
- 289
- Advertised Exhaust Duration:
- 297
- Advertised Duration:
- 289 int./297 exh.
- Intake Valve Lift with Factory Rocker Arm Ratio:
- 0.624 in.
- Exhaust Valve Lift with Factory Rocker Arm Ratio:
- 0.624 in.
- Valve Lift with Factory Rocker Arm Ratio:
- 0.624 int./0.624 exh.
- Lobe Separation (degrees):
- 114
- Computer-Controlled Compatible:
- Yes
- Material:
- Billet Steel
- Camshaft Gear Attachment:
- 3-bolt
- Valve Springs Required:
- Yes
- Grind Number:
- 289LRHR14
- Camshaft Manufacturers Description:
- Hydraulic Roller - LSR Cathedral Port: Broad top end power range for high RPM, race only LS engines with aftermarket cathedral port cylinder heads and higher compression.
- Quantity:
- Sold individually.
- Notes:
- Cannot use stock springs. With cathedral port heads and higher compression. Custom computer tuning required.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 4.8L/294-7.0L/427
- Years:
- 1997-2019
