DAH32

Need some opinions guys...

I have a 99 silverado with a 6.0 and t56 with 4.56 gears.

Would it be wise to go back to the 4.8 with gas prices going up...

My 6.0 was mainly put in to tow my race car.

It would cost me about 650 buck to make the change back...

I would be leaving the the t56 and 4.56s in the truck.

What would be worth while?

100 miles more a tank? 200 miles more a tank?

silverado1ss89

You will waste more gas on the 4.8
Because lack torque...

GMCtrk

iTrader: (27)

the 6.0 should be getting very similar gas mileage, assuming it's stock and you don't drive around mashing it all the time.

DAH32

Ok good points...Just stay with what I got.

.James.

iTrader: (17)

i think you should trade the 6.0 for my 5.3 imo hahaha

silverado1ss89

I give u my nnbs 4.8 and tranny for your set lol.. Damn he is one smart guy ^^^^

DAH32

Just trying to figure out a way to cut the fuel bill down...get the chevelle to the track a little more....

dug

iTrader: (10)

my 4.8L always guzzled gas 15-18mpg.

I vote for changing the heads on the 6L to increase compression. That will help gas mileage

DAH32

Really? To what a set of 243's?

bardo

I would bring that rear gear down some depend on the tire your running