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  1. #1
    Join Date
    Feb 2007
    Posts
    8

    Default 1974 455 lesabre mileage

    what can i expect to get for mileage from a 74 lesabre with a 455?

  2. #2
    Join Date
    Feb 2002
    Location
    North Carolina
    Posts
    24,147

    Default Re: 1974 455 lesabre mileage

    10-15 depending on whether it is a 4 barrel or the 2 barrel.
    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."

  3. #3
    Join Date
    Oct 2002
    Location
    Rural MO
    Posts
    2,083

    Default Re: 1974 455 lesabre mileage

    my 74 vert with a 2.72 rear, q-jet and HEI got 16.1 mpg almost every tank.
    Yuk
    I don't mow, I just cover all the grass with BUICKS!
    1.5, 74 LeSabre Luxus Ragtops
    2, 75 LeSabre Custom Ragtops
    1, 76 4-door LeSabre Custom Sedan (TheWildBlueYonder)
    1, 74 Electra Limited Brn. Met. 4dr. (CarmelElectra)
    & the 1993 Buick RoadMistress Wagon.

  4. #4

    Default Re: 1974 455 lesabre mileage

    Quote Originally Posted by yuk View Post
    my 74 vert with a 2.72 rear, q-jet and HEI got 16.1 mpg almost every tank.
    Do you get similar mileage with your '74 Electra?

    The best I did with my 1975 Electra with a 455 Q-Jet, TH 400, HEI and 2.73 gears was 10.5 MPG and I usually get 9.5 MPG.
    My '74 LeSabre hardtop coupe with a 350-4, TH 350, 3.08 gears, ignition points and no A/C was a bit better averaging about 12-14 MPG (mostly in winter) but I didn't have a trip meter in this one and I didn't check the mileage constantly when I filled it up.

  5. #5
    Join Date
    Oct 2002
    Location
    Rural MO
    Posts
    2,083

    Default Re: 1974 455 lesabre mileage

    i havent driven the electra 2 miles since i bought it...


    my 76 lesabre 4dr sedan had a 350/350turbo with a 3:08 gear and seldom got over 14.
    now i drive it daily with the 92 roadmaster TBI motor and tranny (and dash cluster) and it almost always gets more than 19 and sometimes up to 21.5.
    Yuk
    I don't mow, I just cover all the grass with BUICKS!
    1.5, 74 LeSabre Luxus Ragtops
    2, 75 LeSabre Custom Ragtops
    1, 76 4-door LeSabre Custom Sedan (TheWildBlueYonder)
    1, 74 Electra Limited Brn. Met. 4dr. (CarmelElectra)
    & the 1993 Buick RoadMistress Wagon.

 

 

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