Hello all, after looking at the prices of used Diesels with twice the mileage of my paid in full 03 ECSB 4x4 LT Z/71 with 3.73's, I think I am going to keep it for a while to come and do a few mods to make it "somewhat" newer to me. I am looking for some added TQ for towing etc. as I already have go fast stuff. If you have any knowledge of these parts and please chime in. I have tried searching, but people seem to all over the place here...

Engine (currently bone stock 103k miles):
- Looking to send my stock 5.3 heads to AI or TEA for work
- Comp 218/222 113*+4 cam with new lifters, oil pump, LS2 chain, and push rods
- Long Tube headers and 3" cat back (hold the cats)
- adding E-fans
- Cold Air Intake (do these really add anything)

Trans:
- Servo and transgo kits

Suspension:
- front leveling kit (only plan to go 265/75/R-16 BFG All Terrain's on Moto Rims)


Thanks for your time and consideration!

 

You could do a supercharger but it would be more costly once everything was done and upgraded of course.

If you go the cam route, you're still gonna want some kind of higher stalling converter over the stock one. Depends on how big of a load you will be towing also. If you will be pulling real heavy loads than I would stick with a 2500-2800 rpm converter. Not so heavy loads you can get a 2800-3200rpm converter and you should get a tru-cool 40k transmission cooler as well with any aftermarket converter especially with you towing.