These COMP Cams LSR Series hydraulic roller camshafts feature modern lobe profiles that take full advantage of high-flowing late model GM LS3 rectangular port cylinder heads. They are tailored for a specific rpm range and usage, from torque to high-rpm horsepower. Give your Chevy LS3 engine a shot in the arm with one of these COMP Cams LSR Series hydraulic roller camshafts.
Overview :
- Cam Style: Hydraulic roller tappet
- Basic Operating RPM Range: 2,000-7,000
- Intake Duration at 050 inch Lift: 231
- Exhaust Duration at 050 inch Lift: 247
- Duration at 050 inch Lift: 231 int./247 exh.
- Advertised Intake Duration: 281
- Advertised Exhaust Duration: 297
- Advertised Duration: 281 int./297 exh.
- Intake Valve Lift with Factory Rocker Arm Ratio: 0.617 in.
- Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.624 in.
- Valve Lift with Factory Rocker Arm Ratio: 0.617 int./0.624 exh.
- Lobe Separation (degrees): 113
- Camshaft Gear Attachment: 3-bolt
- Computer-Controlled Compatible: Yes
- Grind Number: 281LRRHR13
- Valve Springs Required: Yes
Quantity: Sold individually.
Notes : Cannot use stock springs. With rectangular port heads. Custom computer tuning required.
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