Engine change!!

[82Blaze]

Well....I finally got tired of the supercharged 5.7 TBI and the TERRIBLE (9.5mpg)gas mileage.

I bought a 5.3 with the computer and all the accessories from a 2007 Silverado with 18,000 miles on it. I will be putting the Z06 cam in it this weekend and should have the headers Monday or Tuesday so I can start the swap next week sometime. I am keeping my 700R4 since it was just rebuilt this year.

This swap should give me more horsepower AND better mileage.

[83K1500]

If I could get a 5.3 for a decent price I would do it...
But as is, my best bet is my 383, and keep d/ding my 93 mid size olds that gets 28MPG.

[Stevens07]

You'll get better mileage and power. At a minimum, your starting out with 315hp and 335tq before the z06 cam. Consider a higher stall too if it's in the budget. That will compliment the cam nicely.

Mileage on the 5.3 is 16-19 with reports even higher if you keep out the throttle.

Good luck with the swap. Post pictures of the swap.
Steven

[82Blaze]

I work part time at a pickup accessory and speed shop and bought it from a friend of the owners. I only paid $850, so I am sure I can fit a torque converter into the budget. If you've had any experience with this kind of swap, what stall would you suggest?

[modular93fox]

i would just get a 4l60e and call it a day... sell your freshly rebuilt trans to someone else and tell them it was freshly built. is your trans have a VSS output? if not your gona need one
clint

[GreaseDog]

Originally Posted by modular93fox

i would just get a 4l60e and call it a day... sell your freshly rebuilt trans to someone else and tell them it was freshly built.

just the tunability alone is worth installing the 60E.

[modular93fox]

Originally Posted by GreaseDog

just the tunability alone is worth installing the 60E.

oh yeah, i mean you can install a 125$ transgo shift kit and make the transmission shift nice and firm... i mean its not by anymeans bullit proof, just as strong as the 700r4 if not stronger.
clint

[modular93fox]

Originally Posted by 82Blaze

this weekend and should have the headers Monday or Tuesday so I can start the swap next week sometime.

what headers did you choose for your swap? engine mount adapters? are you going to be running a/c? you can retain factory a/c if you make your own bracket, or modify the 50$ pre made ones.

[team39763]

Putting a 6.0 into my 82 was the best thing I could have done for my truck. It outran the 350 by a mile. But it's carbureted though.

[bored&stroked]

Originally Posted by 82Blaze

what stall would you suggest?

The Zo6 cam still usen't huge by any means so you should go easy on the TC, I would say around 2300rpm and make sure its a lockup type.

[82Blaze]

Since I am in Oklahoma and this is a daily driver, I will definitely be keeping the AC. The manager of our speed shop and the mechanic have done a couple of these swaps and ordered the mounts and headers. I am not sure which headers he ordered but they are long tube coated.
I am using a premade wire harness and stand alone ecm with some of the un-needed program areas deleted. I think it may have been the Painless or Current Performance pieces.

[82Blaze]

Didn't get started yet, but we are going to take pics as we go. I will post them as I get time.

[BlackC10]

two months later.... what's the status?

build up the trans. modified 5.3s tend to break stuff. I've been rebuilding the 4L6xE transmissions lately. It's a learning experience for me. Have gotten better rebuilding stronger.


** damn... my sig is OLD. LOL