The Gen III Hemi market is rapidly expanding, and the HRT Camshaft Series uses the newest and most advanced lobe designs from COMP Cams in order to produce some of the highest average power and torque camshafts available for these engines. The “Low Shock Technology” features lobe profiles designed to maximize horsepower while improving stability at higher RPM. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. The new HRT Camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250% improvement in the effective load bearing area, allowing for much higher loads. Organized into stages, these new options range from mild to wild! All HRT Stage 1 Camshafts are No Springs Required, which keeps cost down while still providing awesome horsepower increases over stock. Stages 2 and 3 applications work with COMP Cams Beehive and Conical Valve Springs, but COMP Cams is also introducing new HEMI Valve Spring Kits, engineered to produce the most power and RPM of any current options.

Installation Instructions

This Part Fits:

Year	Make	Model	Submodel
2006-2010	Jeep	Grand Cherokee	SRT8

Advertised Exhaust Duration	271
Advertised Intake Duration	269
Applications	Dodge 5.7/6.1L HEMI Engines w/o VVT
Assembly Lubricant Included	No
Basic Operating RPM Range	1,500-6,200
C.A.R.B. E.O. Number	N/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?	Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?	Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?	Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?	No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?	Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption Reason	N/A
California Proposition 65	WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam Type	Hydraulic Roller
Camshaft Material	Billet Steel
Camshaft Series	HRT NSR
Comments	Stage 2 available under 112-303-11.
Comments	Stage 3 available under 112-305-11.
Description	No Springs Required (NSR) Stage 1 Grind for Gen III Hemi. Great mid-range torque w/ excellent power. Perfect for heavier vehicles, has great throttle response.
Description_SLA	NSR Stage 1 Non-VVT HEMI Cam
Engine Family	Dodge 5.7L & 6.1L HEMI (2003-08)
Exhaust Duration at .050 inch Lift	222
Exhaust Valve Lift	0.495
Intake Duration at .050 Inch Lift	216
Intake Valve Lift	0.5
Lifter Type	Hydraulic Roller
Lifters Included	No
Lobe Separation	113
Stage	1
Valve Springs Required	No