Gas Mileage

155

Asked by May 25, 2008 at 06:39 PM about the 1970 Dodge Challenger

Question type: Maintenance & Repair

What is the approximate miles per gallon for a 440, 426, and a 383?

How can it be improved?

11 Answers

46,115

8-10 mpg tops for any of those engines. No real way to improve it.

3 of 3 people found this helpful.
155

Is it possible to replace the carburetor system with fuel injectors? If so, whats the price tag?

1 of 1 people found this helpful.
45

Did you try some performance headers, cold air intake, and a performance muffler to relieve back pressure?

65

I had a 1970 Challenger with a 340 engine it usually got 10-12 mpg, but I once got 20 mpg out of it on a 150 mile road trip, of course I didn't open the back barrels on the carb, no jack rabbit starts, accelerated slowly, shifted early and didn't drive over 60 mpg. Those are the kinds of things that will improve your mpg, but with a car like that who is going to drive slowly.

3 of 3 people found this helpful.
35

Best way to improve the miles per gallon is to put in a 5 or 6 speed with 3.73s or 3.55s in the rear end. Also is to go from carburated to fuel injected. There are companys that have kits just got to search. Mass-flow is one company, for the trans i would check with keisler as they have a drop in kit that comes with everything you need to convert your auto or 4 speed.

If your worried about the mileage that you will obtain by driving a vehicle with any of those engines you should seriously consider selling it and buying a newer 4 cylinder. none of them will exceed 9 mpg. and thats babying it and being dead on with your tune.

3,465

your getting a 1970 Challenger and your worried about gas mileage? I'll trade you for my Saturn Ion... it gets 25-30mpg lol

3 of 3 people found this helpful.
155

Yes I am sure some would ask why I would want one of these big blocks if I am worried about gas mileage. However, I am sure those individuals have plenty of money to spend on gas and other toys. However, answering the question of how to increase gas mileage while maintaining high performance at the same time is purely intellectual. Gas is not getting cheaper, but that will not stop me from getting a car like this. I am sure a lot of people will like to keep their pride and joy and be driving them ten years down the road.

25

I drive a 302 Mustang Cobra and yes, it hurts at the pump, but it more than makes up for it with the pleasure that I get out of driving it. I do miss my old crappy Tercel that got over 30 mpg consistently, but the experience just doesn't compare. I've wanted some muscle all my life and now they are finally affordable and I'm not looking back!

570

not that my opinion matters but why dont you try this... if you already own the challenger, save it for weekend drives and the occasional weekday drive, put the money you would have spent on the challenger to get better mpg, which would likely be 1500+ to make an actual difference... and buy a civic or tercell or neon or escort... here you get the 30+mpg and still get to keep you tire shredding big block for the fun days.

1 of 1 people found this helpful.
155

There is an idea. I live in the city already and have good access to public transportation, so there isn't any real need to buy that super efficient car:)

3 of 3 people found this helpful.

Your Answer

Challenger

Looking for a Used Challenger in your area?

CarGurus has 25,517 nationwide Challenger listings starting at $6,972.

ZIP:

Dodge Challenger Experts

  • #1
    cubfan08
    Reputation
    660
  • #2
    Chase Sutherland
    Reputation
    490
  • #3
    Jeff Schmidt
    Reputation
    480
View All

Related Models For Sale

Used Dodge Charger
440 Great Deals out of 34,726 listings starting at $2,000
Used Chevrolet Camaro
499 Great Deals out of 30,905 listings starting at $995
Used Ford Mustang
414 Great Deals out of 41,519 listings starting at $1,488
Used Chevrolet Corvette
133 Great Deals out of 16,101 listings starting at $3,000
Used Chrysler 300
389 Great Deals out of 19,051 listings starting at $2,200
Used Chevrolet Impala
541 Great Deals out of 33,352 listings starting at $1,499

Used Cars For Sale

2018 Dodge Challenger For Sale
3 Great Deals out of 13,776 listings starting at $20,835
2017 Dodge Challenger For Sale
22 Great Deals out of 3,246 listings starting at $17,991
2016 Dodge Challenger For Sale
59 Great Deals out of 2,130 listings starting at $14,991
2015 Dodge Challenger For Sale
45 Great Deals out of 1,817 listings starting at $14,490
2014 Dodge Challenger For Sale
48 Great Deals out of 1,278 listings starting at $10,991

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.