MPG for LS-Swapped 80-Series? (1 Viewer)

[TriaxialBulls]

Looking for some data on fuel economy for an LS-swapped 80-series. If you have one or know someone who has one, please post their setup (engine/trans/gearing/tires) here

I’m trying to collect actual data points for a comparison I’m doing, so please try to refrain from “I’ve heard they get X mpg” or “I think that this setup would get Y mpg”

 

[nickolai]

Lots of info in here: 8x Series V8 Swaps - https://forum.ih8mud.com/threads/8x-series-v8-swaps.948869/

Most seem to say 15-20 MPG. SPM is higher.

 

[LS80Climb]

10 mpg on 37s with a 5 speed and factory gears

 

[filthyluker]

Cammed lq9, 4l65e, 35's and stock gearing. I get a solid 15.5 mpg driving it like I stole it all the time

 

[White Stripe]

6.0, 32" tires, 4l60e, 11 town, 13 or 14 hwy. Interestingly when it had a 5.3lm7 it got close to the same as the 6.0

 

[thatcabledude]

Basically stock 5.3/ 4l60 on 37s and 4.88s

Drive like a maniac and get 15 mixed