This COMP Cams (R) HV NSR cam is designed for GM cathedral port 4.8L/5.3L/6.0L powered vehicles. It provides amazing drivability and throttle response while also requiring minimal tuning. Torque is increased across the entire operating range while still producing +69 horsepower at peak. Get the most out of your daily driver truck, SUV or 4x4 without sacrificing street manners. The NSR HV cam will provide a deep rumble with a mild, yet noticeable lope. At .541" lift, this cam is designed to allow drop-in performance with stock valve springs. Also compatible with stock converters.
Specifications:
| Description_ASM |
GM cathedral port LS engines GEN III/IV 4.8L/5.3/6.0L |
| Description_DEF |
Engine Camshaft |
| Description_DES |
HV NSR Cam 218/226 .541/.541 Hyd Roller for GEN III/IV 4.8L/5.3L/6.0L |
| Description_EXT |
This COMP Cams (R) HV NSR cam is designed for GM |
| Description_INV |
HV NSR Cam 218/226 GEN III/IV |
| Description_SHP |
None |
| Description_LAB |
HV NSR Cam 218/226 .541/.541 Hyd Roller for GEN III/IV 4.8L/5.3L/6.0L |
| Description_SHO |
Hyd Roller Camshaft |
| Description_MKT |
This COMP Cams (R) HV NSR cam is designed for GM cathedral port 4.8L/5.3L/6.0L powered vehicles. It provides amazing drivability and throttle response while also requiring minimal tuning. Torque is increased across the entire operating range while still producing +69 horsepower at peak. Get the most out of your daily driver truck, SUV or 4x4 without sacrificing street manners. The NSR HV cam will provide a deep rumble with a mild, yet noticeable lope. At .541" lift, this cam is designed to allow drop-in performance with stock valve springs. Also compatible with stock converters. |
| Lifter Type |
Roller |
| Advertised Intake Duration |
272 |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Intake Close ABDC |
50 |
| Camshaft Intake Centerline |
107 |
| Engine Platform |
GM LS GEN III/IV |
| VVT Compatible |
No |
| Lobe Separation |
112 |
| Usage |
Street |
| Cam Grind # |
LS272PU-12 |
| Fuel Management Strategy Compatible |
No |
| Intake Open BTDC |
2 |
| Exhaust Close ATDC |
-4 |
| Intake Valve Lash |
Hyd |
| Camshaft Series |
HV |
| Phaser Requirement |
None |
| Factory Rocker Ratio |
1.7 |
| Exhaust Valve Lift with Factory Rocker Arm Ratio |
0.541 |
| Direct Injection |
No |
| Exhaust Lobe Lift |
0.318 |
| Intake Duration at .050 Inch Lift |
218 |
| Valve Springs Required |
Yes |
| Basic Operating RPM Range |
2500 - 6200 |
| Exhaust Open BBDC |
36 |
| Advertised Exhaust Duration |
278 |
| Intake Lobe Lift |
0.318 |
| Intake Valve Lift with Factory Rocker Arm Ratio |
0.541 |
| Exhaust Duration at .050 inch Lift |
226 |
| Advance |
5 |
| Computer Controlled Compatible |
Yes |
| Exhaust Valve Lash |
Hyd |
| Cam Type |
Hydraulic Roller |
| Length |
3.0000 |
| Width |
3.0000 |
| Height |
24.0000 |
| Weight |
10.0000 |
