How much HP can a 5.3 LS make?
Category:
automotive
pickup trucks
The stock 5.3L is factory rated around 320 hp with 340 lb-ft of torque.
Similarly, you may ask, how much HP can a stock LS block handle?
Most people will tell you 500-550 rwhp is a reasonably safe limit to push a stock bottom end. The weak link is usually the pistons.
- Installing a High-Performance Cold Air Intake to increase horsepower.
- Installing a High-Flow air filter and intake.
- High Performance Exhaust System.
- Supercharger.
- Turbocharger.
- Nitrous.
Thereof, is a 5.3 Vortec an LS?
5.3 L. The Vortec 5300, or LM7/L59/LM4, is a V8 truck engine. Vortec 5300s are built in St. Catharines, Ontario and Romulus, Michigan. Another engine variant, the L33, shares the same displacement, but has an aluminum block with cast in cylinder liners, much like the LS1.
Power Output The 6.0-liter LS engine produces 300 horsepower at 4,400 rpm and 360 pound-feet of torque at 4,400 rpm. It has a maximum engine speed of 5,600 rpm.