🚀 Unleash your GM truck’s beast mode with zero hassle!
The BTR Brian Tooley Racing Truck Norris NSR Camshaft is a high-performance camshaft designed for 1999-2013 GM Gen 3/4 LS truck engines (4.8L to 6.2L). Featuring a 212/22X duration and .498" lift, it boosts power and torque across the RPM range while allowing reuse of factory valve springs for easier installation. Developed through extensive testing, it delivers aggressive sound and superior performance without requiring spring upgrades, making it the ideal upgrade for enthusiasts seeking reliable, hassle-free power gains.
| Manufacturer | Brian Tooley Racing BTR |
| Brand | BTR Brian Tooley Racing |
| Model | BTR Truck Norris NSR |
| Item Weight | 11.33 pounds |
| Package Dimensions | 22.2 x 3.8 x 2.9 inches |
| Item model number | BTR Truck Norris NSR |
| Exterior | Machined |
| Manufacturer Part Number | Truck Norris NSR |
J**.
5.3l lm7 gen3 ls
Cam came in perfect condition no complaints. Can go wrong with a BTR cam
K**A
Good chop, reliable valvetrain
Everyone always wants the biggest most gnarly cam you can get and don't know about the drop in valvetrain life. The truck Norris gives a nice chop but doesn't kill your valve train like the bigger cams, I've used several of these and it's my go to for any build not going exclusively to the track. I'd still change to the ls6 springs just to add some safety because the stick springs don't love higher rpm
J**A
Good cam
Good cam fast shipping was used on a 2001 GMC Sierra 5.3
S**N
WOW WOW WOW
Threw this cam in a 2001 4.8 LR4 along with new springs. Run's like a top and sounds amazing. Great product as always from BTR.
A**E
Needs to be tuned after install..plus springs will help more than u think
Quality:Installed this cam on a lm7 5.3.....backfires through the intake and throw random misfire codes constantly..U ABSOLUTELY NEED A TUNE AFTER INSTALLING....still waiting to tune...now I can't drive the truck...
Trustpilot
2 months ago
2 weeks ago
