Curious if anyone is running this setup in their 5.3s. What am I looking at reliability wise and HP wise? Will be on pump gas tune probably for 87 but may run 93. Street tuned obviously.

Engine Mods:
- TSP 216/220 112 .600/.600 Stage 3 Cam
- PAC 1219 Springs
- 7.4 Pushrods
- LS2 Timing Chain
- GM High Performance Oil Pump
- CAI
- Flowmaster Force II Exhaust
- Pacesetter Long 1 3/4 Long Tubes

Drivetrain Mods:
- Motive 4.10 Gears

This will all be going in a daily driver ext cab...

 

Do all that and run 87 octane?

It would have to de-tuned if you ask me so that it could run okay on 87 octane. Mid grade 89 of 91+ octane at a minimum if you are going to add 40-50hp.

 

You're going to need a converter even with the gears with that big camshaft, you're shifting the powerband up what, 1000 rpms?