I'm getting an early 90's model T-bird before long that has a a 289 HI-PO out of a 66 mustang in it. I think I'm gonna keep it for a toy, or, put it in a ranger.

I'm also looking for an F150 for an everyday driver. I'm especialy partial to the pre-1980's model F series trucks, problem is I'm a little leary getting another one due to the gas prices. We had a 77 F-350 custom with the 400, 4spd w/granny gear. and it got horrible gas mileage. most of the ones I've found around here have the 351c, 351M, and 351w motors in them.

I have a friend who's willing to sell me his 1989 F150 longbed 300 6, 5spd. for cheap. but like I said I'm more partial to the 60's and 70's models.

my question is this, can anybody give me a rough estimate of what the gas mileage would be for an f150 with a 351 motor?

(sorry for such a long winded thread starter)

 

oh, and as long as it was a lock in/out hub, would it hurt the mileage that bad to be 4wd? being that they'd pretty much be free wheeling untill I needed them, wouldnt they?

 

There are a lot of variables that effect the gas mileage. A transmission that has OD vs. one that doesn't, a manual vs. an automatic, gearing, tire size, how the truck is driven, highway vs. street, etc. With that being said, I think you can estimate that an F-150 with a 351 will get anywhere between 8-14mpg.

Leaving the truck in 4wd with the hubs unlocked will noticibly reduse the gas mileage by a few mpg. The same goes for leaving the hubs locked when the truck in not in 4wd.

Hope that helps.

 

ok, well, I could still talk the wife into it, IF, the T-bird gets decent gas mileage. lol maybe. lol

so if I could find one with a 351, standard, 2wd its likely that I could get decent gas mileage, at least as far as 70's model ford trucks go. lol*******

 

Ha! Finding a 70's truck w/ good gas milage is like finding a homeless man driving a Ford GT!

 

I didnt say good, I said decent, as far as trucks go. lol like 14mpg or maybe a little better.

 

Maybe, but I wouldn't count on it for a 70's 351. Probably closer to 10 range give or take.