TSP Stage 1 NSR Camshaft – 4.8L / 5.3L LS (No Springs Required)

The TSP Stage 1 NSR Camshaft is the ideal entry-level cam for 4.8L and 5.3L LS engines looking for a noticeable bump in power without diving into valvetrain upgrades. Designed to retain stock springs, pushrods, and converter, this cam is perfect for everyday performance builds and mild towing setups.

Camshaft Specifications:

Duration @ .050” (Intake/Exhaust): 208° / 214°
Lift (Intake/Exhaust): .495" / .495"
LSA: 112°
ICL: 110° (112+2)
Powerband: Low-end to mid-range with smooth transition into upper RPM
Estimated Gain: Around +35–40 HP

Why Choose the Stage 1 NSR Cam?

No Springs Required: Compatible with factory LS valve springs
Pushrod Friendly: Works with stock pushrods for a true drop-in upgrade
Torque Converter Safe: No stall required — keep your factory 4L60E or 4L80E setup
Mild Overlap: Daily-driver friendly with excellent throttle response
Versatile: Great for street use, light towing, or weekend fun

The TSP Stage 1 NSR Camshaft brings all the benefits of an aftermarket cam upgrade — more torque, more horsepower, and better drivability — while staying compatible with your stock valvetrain. It’s the easiest first step toward building a better 4.8L or 5.3L LS truck engine.