Texas Speed & Performance (TSP) "RV" NSR (No Springs Required) 4.8L/5.3L LS Truck Camshaft Specs (TSP-NSR-RV-5.3): 208/216 .495"/.495" 110 LSA
These camshafts have a 3-bolt timing gear pattern.
From Texas Speed:
"The TSP-NSR-RV-5.3 Camshaft is our modern twist on the classic small block RV cam. Designed specifically for 4.8L and 5.3L LS truck engines, this cam delivers maximum low-end torque for towing, off-road, and daily driving. It's the ideal upgrade for anyone wanting more grunt without giving up reliability or drivability. Whether you're hauling a trailer, building an off-road rig, or just want more usable torque on the street, the TSP NSR RV Camshaft gives your 5.3 or 4.8 the kind of low-end punch you'd expect from a classic small block upgrade — but with modern LS reliability."
- Duration @ .050” (Intake/Exhaust): 208° / 216°
- Lift (Intake/Exhaust): .495" / .495"
- LSA: 110°
- ICL: 107° (110+3)
- Powerband: Low-end to mid-range torque
- Estimated Gain: Up to +40 HP
- No Springs Required: Designed to work with stock LS valve springs
- Uses Stock Pushrods: No additional valvetrain upgrades needed
- Retains Stock Converter: Works with your factory 4L60E or 4L80E torque converter
- Great for Towing: Increases torque right where you need it most
- Mild Overlap: Smooth idle with daily-driver-friendly behavior
Note: NSR camshafts run at the limit of the OEM springs and you MUST ensure that your valves springs are making their rated spec and are not worn/fatigued. Using this camshaft with weak OEM valve springs may result in broken springs and/or engine damage.
NOTE: HP gains are representative of what was achieved by TSP on their in-house dyno and are highly variable depending on your combination's existing modifications and tuning - results may vary.
