Willowbilly3
A *real* tin magnet
What engine trans combo would you say to be the best on fuel mileage. for the sake of argument, lets say it's going in a basically stock mid 50s pickup body, and it's got to be a V8 and automatic.
Fuel mileage poll
- Thread starter Willowbilly3
- Start date
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CR55
It's just a little surface rust!
Anything except a 350 Chevy.....love em, but they're the worse for good mileage, I know I've had quite a few!. I would have to go with a Ford 302 and any type of Overdrive trans...CR (This should get real interesting WB!)
TiredIronGRB
Traditionalist
283/327 have anyways been a good power/mileage option.
rustybeercan
Never met a beer he didn't like!
Don't forget the rear end as well. That also dictates mileage. I prefer OD trannys too.
Beercan
Beercan
goose-em
Well-known member
572 and tremec 6 speed.
HOT40ROD
Well-known member
Also depends on the rear end gear ratio and tire size.
Gregster
Well-known member
My blown 454 gets 14.3 mpg on the hwy @ 65 mph , my '93 Z-71 gets less, why , I wish I knew !
42chevy
Rustier Rat Rodder
I used to get about 19-20 on the highway in my '57 Chevy with a 327 and 4 speed until I went from a Q-jet to an Edelbrock. I get about 16 now. An overdrive trans and good gears should get about anything decent mileage, regardless of brand.
Willowbilly3
A *real* tin magnet
Assume optimal gearing, I'm not looking for a discussion on gear ratios. I'm just looking to discuss engine/tranny combos here. The cruising rpms would be worth mentioning tho. Personally I have had the best mileage from 283s and 289s but mostly stickshifts.
350 sbc 700R4 w/ 3:42 gears in an S10 blazer knocked down 17.5 mpg's. TPI 350 in a vette 700R4 w/ 3:08's knocked down 23mpg. 5.3L vortec with a T70 turbo, 4L80E and 3:23's in an 89 C1500 made 12 mpg @680 crank hp. My 325hp 396 th400 3:90 geared chevelle is 8-10 mpg at best. [P
lowbuckrats
Well-known member
307 sbc w/ a 700r4. Stock aluminum intake with a late model non electronic Quadrajet with a summit R/V cam. I got 20-25mpg all day long in my old 60 Biscayne w/3:55 gears. OD+long stroke motor=torque=good mpg. Had great power too...I miss that car...305 should do the same, but I think the 307 is way better.
cycledog
A really rusty biker
What does fuel milage have to do with hotrods?
Crossfire
Well-known member
fuel mileage
Really depends on what kind of truck its going in too. If you want mileage Chevy 307 0r 305 with t-5 tranny Ford 260 or 289 with t-10 tranny Mopar 318 with A833 -4speed overdrive.
Really depends on what kind of truck its going in too. If you want mileage Chevy 307 0r 305 with t-5 tranny Ford 260 or 289 with t-10 tranny Mopar 318 with A833 -4speed overdrive.
Tripper
Older and more rusted every day!
HOT40ROD
Well-known member
I'm just wondering why we are talking about gas mileage with are toys. To me its about horse power.
eyesore
Well-known member
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Flipper_1938
He recycles the right way
If you like driving to long distances, it matters. I would have loved to have driven my flatbed to Bonneville last summer, but I couldn't afford to do it. I drove my Toyota there for 1/3 - 1/2 the cost.
The 41 dodge truck is going to get a sensible drivetrain....and air conditioning.
Ol Blue
Well-known member
My 3500lb AD pickup with a tired,flat cammed 305 with a Rochester 2 bbl carb and Turbo 350 got 18 MPG. I rebuilt the engine with an RV cam, SP2P manifold and Edelbrock 500 cfm carb and the best I've gotten is 16.
Willowbilly3
A *real* tin magnet
For some of us they aren't just toys but also daily transportation. The difference between 5-6 mpg and 15-16 is enough money to buy a lot of parts if you are driving 1000 miles a month (about average for me)
