The Gen V 5.3 Truck Norris grind is a popular choice for those looking to delete DOD/AFM on their L83/L86 engine, or to just add that aggressive idle everyone loves. With great power gains and OEM driving characteristics, this camshaft works well with stock converters. Specs: 21X/22X, .540"/.540", 111 LSA, 14% fuel lobe INTAKE LOBE LIFT @ TDC: 0.0474

BTR CAMSHAFT - GEN V 5.3 TRUCK NORRIS 

Specs: 21X/22X, .540"/.540", 111 LSA, 14% fuel lobe

INTAKE LOBE LIFT @ TDC: 0.0474

Brian Tooley Racing is proud to introduce the next innovation in the GM performance truck industry. Our Gen V L83/L84 VVT camshaft was born from the demands of an ever changing market. This cam was built for the true power enthusiast wanting that old school sound while making that new school horsepower.

The Gen V Truck Norris grind is a popular choice for those looking to delete DOD/AFM, or to just add that aggressive idle everyone loves. With great power gains and OEM driving characteristics, this camshaft works well with stock converters. 

Made In The USA!

NOTE: This camshaft requires valve spring upgrade, part number BTR91120-16

Engine Family:                                          GEN V LT (L83/L84)

Recommended Engine Size                   5.3L

Recommended Valve Springs:             BTR91120-16                                   

Lifters Required:                                      X12499225-16     

VVT Limiter:                                              BTR-VVT-(GENV)-4CAM or BTR-VVT-(GEN-VP)-4CAM

INTAKE DURATION @.050":                    21X°

EXHAUST DURATION @.050":                22X°

LOBE LIFT INTAKE:                                    0.300"

LOBE LIFT EXHAUST:                                0.300"

INTAKE LOBE LIFT @ T.D.C.:                    0.0474"

ROCKER ARM RATIO:                               1.8:1

NET LIFT INTAKE:                                      0.540"

NET LIFT EXHAUST:                                  0.540"

LOBE SEPARATION ANGLE:                    111°

FUEL LOBE                                                 14%

RPM Operating Range:                               2000-6700

Idle Quality:                                                  Great rumble sound without sacrificing factory comforts

Chop Scale:                                                    6/10

Expected Cam Swap Gains (P2P):           44 Horsepower, 25 lb/ft , extra 750 RPM of operating range 

Torque Converter Characteristics:        Works well with factory converters!  

"Drivability":                                               Mild-mannered daily feel, with a nice aggressive sound