I picked up an 04 gmc z71 from Roncarter and I want to know what it will do in the 1/4, and what mods can I do that wont void warrety?
Matt

 

What engine & gears do you have?

 

well probly a solid 16.5 to 17 in the 1/4 if its the 5.3 in this heat

 

ah, slow........but I'm still slower

 

Its a 5.3 with 3.73 gear.
Matt

 

MUDZ5.3 ran a 15.6x in his ECSB 4x4 with only a couple bolt ons. I think he only had intake and exhaust at the time. Also, the '04 is supposed to be like 10 more HP than his 2000, so I'd quess somewhere in the high 15's.

 

on my 02 short cab my best was a 15.7 5.3 engine with 3.73 bone stock.

 

I was going to guess higher 15's, seeing as the SS's are lower 15's.

 

drive out to HRP tonight or Sunday and let us know.

 

with this heat maybe low 16. In winter, i'd say mid to high 15's.