HV NSR Cam 218/226 .541/.541 Hyd Roller for GEN III/IV 4.8L/5.3L/6.0L

This HV NSR (No Springs Required) cam for GM cathedral port LS engines is a drop in camshaft upgrade designed to provide amazing drivability and throttle response in larger vehicles. Provides increased torque across the entire RPM range with a significant horsepower bump.

In stock
SKU
54-271-11
$499.95

This COMP Cams® 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.

Offers excellent drivability and throttle response while being easy to tune. Excellent choice for heavier daily driver vehicles (trucks/SUVs). Provides a deep rumble with a mild, yet noticeable lope. Works with stock springs and converters. +69 hp & +29 ft-lbs at peak over Gen IV 5.3L.

Computer Controlled Compatible: Yes
Valve Springs Required: No
Maximum Advance At Camshaft: 5 deg
Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
RPM Operating Range: 2500 - 6200
Grind Number: LS272PU-12
Cam Type: Hydraulic Roller
Camshaft Series: HV
Usage: Street
California Proposition 65: Yes
Advertised Intake Duration: 272°
Advertised Exhaust Duration: 278°
Intake Duration at .050 Inch Lift: 218°
Exhaust Duration at .050 Inch Lift: 226°
Intake Valve Lift: 0.541in
Exhaust Valve Lift: 0.541in
Lobe Lift Intake: 0.318in
Lobe Lift Exhaust: 0.318in
Lobe Separation: 112°
Intake Centerline: 107°
Exhaust Close ATDC: -4°
Intake Open BTDC:
Exhaust Open BBDC: 36°
Intake Close ABDC: 50°
Lifter Type: Roller Tappet
Recommended Cold Lash Setting - Intake: Hyd
Recommended Cold Lash Setting - Exhaust: Hyd
Direct Injection: No
VVT Compatible: No
Phaser Requirement : None
Fuel Management Strategy Compatible: No