Yeah, he could. With just a tune it should go high 13's to very low 14's. I've seen quite a few stock LT1's going 14.0-14.4 stock and sometimes worse. I've owned a couple myself and alot of my friends also did. Mine was the only on of them that wen't 13's stock.

 

i'm really starting to like this truck, can you get the 5.3 in a 4x4 package. If so you guys think the transfer could stand up to some good launchs, do they make a 6 speed?

 

I think the the only available manual is in a 4cyl and its a 5spd... unless your refering to the 6spd auto which I dont believe is offered either.

As far as launchs I would think it should be able to hold up a good bit.... and even if it doesnt... 100k mile drivetrain warranty

 

i was refferring to the t-56 as in my camaro, i didn't know if they offered it in the colorado or not. What do they use in them a 4l65e?

 

I believe its just a 4L60E

 

I thought the 5 speed was also an option. The first time a 5.3L was ever available with the 5 speed.

 

Possibly... I know they quit doing the 5spd 5cyls though after like a yr or 2

 

Vortec 2.9L I-4 manual 18/24 17/23
Vortec 2.9L I-4 automatic 18/24 17/23
Vortec 3.7L I-5 automatic (Reg. and Ext. Cab) 17/23 16/22
Vortec 3.7L I-5 automatic (Crew Cab) 17/23 16/21
Vortec 5.3L V8 automatic 15/21 14/19

 

you can get the 5.3 in extended or crew cab, 2wd or 4wd with an auto trans

 

ship it to me and I will get you a blower installed