Kory 88Iroc Lt1

iTrader: (7)

I'm in the planning/research stage of a 94 s10 ls/t 56 swap. My goal for the swap is to make around 350 whp and get decent gas mileage. I plan on driving it daily. Mods will include lt headers/ full dual exhaust, cia, possibly an ls6 intake and a small cam probably something like a gm hotcam or simular.
The truck will have either 373 or 410 gears with the t 56. Does any one have any real world knowledge of the mpg difference between a 5.3 and 6 liter motors?
Thanks,
Kory

Blownz28man

iTrader: (2)

Well... If your running a T56 you'll be getting great gas milage on the highway. Will drop down around town. I've heard of mild cam 6.0l's w/t56 gettin 26 hwy+. I have a pretty big cam in my 04 gto w/stock gearing and a t56... I get about 16 around town and 23 hwy. Just will give you a lil bit of an idea..

Kory 88Iroc Lt1

iTrader: (7)

Thanks for the info.
anyone else
Kory

philntx

iTrader: (8)

Mine doesn't have a T56, isn't a truck (it's a Blazer), has 3.73 gears with 29" tires.

When driven mildly it gets 15 around town and 18 on the highway (75ish)

When driven with "enthusiasm" it gets less

Kory 88Iroc Lt1

iTrader: (7)

Thanks for the info.
Kory

the_merv

iTrader: (88)

Mine is a stroker..it gets about 15 city and 22 highway..I'm putting in my 3.90 Gears and I see it going up actually..the 3.50's I have in it now kinda make it lug a little bit.
I don't even want to think about that one..

Civette

iTrader: (1)

well my ls1 swapped civic gets usually 25- 32 mpg with some occasional spurts....and makes 550whp

my lq4 wrx gets around 14-18mpg making 391whp with just a cam.....it sucks!!! lol

Kory 88Iroc Lt1

iTrader: (7)

Thanks for the info.
Kory