Slick 60's

What kind of milage do you get?

And with what combo engine/tranny/rear end/cruise speed/rpm?

Just curious what different setups and mileage you folks are using/getting.

I figure with my 223 6 (original, never rebuilt i dont think) and the 3 on the tree I'm getting 15MPG. however the rearend is probably high 3s at least, with cruising being around 55. 60 if i push it. No tach though so not sure of the RPMs. gotta be hitting 3000 or so though at 60. Hence why i dont do more than about 55.

by the way, anyone know how to figure out the codes on the rearend to get the ratio? would the VIN tell you that perhaps?

My 390 shortbed gets about 12 to 14 with the 2.75 gears I installed. Depends on how much my foot weighs that day.

Rich

my 66 f250 4x4 with 292 yblock 4 speed and 4.56 turns 3000 rpm@70 mph.
the code for the rear end is on the vin tag.

with 390 rollrized engine 645 lift cam tri power close ratio toploader 4 speed 3.50 gears in the 9 inch 31 inch tall tires 35 - 40 dollars an hour
on the highway 60 mph 3000 rpm i'm afraid to do the math to figuire out actual mpg 4-5 maybe?? thank god for winter

ouch joey, youre making my wallet hurt just thinking about it.

and ice, what kind of mileage are you actually getting with that thing? and wherebouts in the VIN is the rearend code located?

12-13 if i keep my foot out of it. the rear end code is the one under axle
on the tag
http://home.earthlink.net/~threynolds2/ ... s6166.html

havent really checked my 240 six but im guessing 16-18. An overdrive would help some or maybe some bigger tires. The 86 Bronco i had with a 300 six and overdrive got over 21 mpg hwy. I miss it . my 02 f-100 with 5.4 only gets 16-18.

thanks ice, big help there

If i wanted gas mileage I would have bought a import.


No, I would rather walk than buy an import.

My 73 with the 300 and 3-speed with 3:1 gears gets 17-18mpg, and I drive it fast up to 80mph.

The 300 is 60 over with a stock cam/offy intake/hooker headers/ Holley 600cfm carb.

I was running 15mpg them I redid the wheel bearings all the way around and aired the tire up right. That made a huge differance!

66 F100 with a 300 I6, T-18 4 speed and 3:25 gears gets about 14-15. And it doesnt matter if I am pulling a trailer or going down hill with the motor off (did I say that?) it seems to average about the same.

Short uni with an 83 351w (stock) and a c6 averages 13-15 in town. haven't driven it much on the highway.

66 swb/4x4/351w 4v/np435/3.55 gears/35x14.50 about 12 mpg.

Lonnie

65 w/ 427, don't think I want to know...................

L6 240, single barrel carb, 3.00:1 rear, the tallest tires I could possibly fit and afford (29"), and loaded, unloaded, freeway miles and city miles..... typically 14-15 mpg, with rare stints of 18 mpg.

However, looking forward to my conversion to Clifford 2bbl water heated intake, tri-Y ceramic headers, and Demon 2bbl carb. Supposed to be a 45% increase in torque and horsepower, and an increase in MPG. I'll let you know as soon as it's done. Should be Fun.

Dan

66 short wide with 240 3 speed and 3.00 rear I got over 22 to the nats last year with 3 slick witnesses!

Eng is 060 over with ds2 and split exhaust. Runs at 2400 at great highway speed. I am not gonna touch it till it

I don't get miles per gallon, I get gallons per mile.........

390, 428cj cam, c6, 3.50:1 gears, heavy foot.

That's why Moose works and lives near the refineries!

I am sure it won't be good. 460 with 429 CJ heads, C6 with a 2800 stall and 3.89 gears. Double digits would be nice.

My daily driver 4x4 Expi gets 18 on the Hiway with the 5.4.

223 3 spd- 3.70 rear = 17 mpg to supernats, and was wk's wittness to his incredible mpg. I prob. get 15 around town.
Charlie