Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

6.2 tranny questions

Discussion in '1982-Present GM Diesel' started by blaz_mem, Jul 21, 2005.

  1. blaz_mem

    blaz_mem Registered Member

    Joined:
    Jul 21, 2005
    Posts:
    36
    Likes Received:
    0
    Location:
    Louisville, Ky
    I am swapping my 6.2 into a k5 with 4:10's and a 700R4 tranny and 35's. I want to go with a SM465 but I am wondering how my fuel mileage will do. It is a daily driver and I dont want it to drop off to much. Any suggestions?
     
  2. kennyw

    kennyw N9PHW Premium Member

    Joined:
    Jun 9, 2002
    Posts:
    13,224
    Likes Received:
    94
    Location:
    Stevens Pass Highway, WA
    I have got as high as 20 mpg driving around town with my '79 K20, 6.2L, 465/205, 4.10 gears and 33" tires. Worst case is usually around 16 mpg on the freeway with a strong head wind and big load. I average 18 mpg empty back and forth to work though. So far I have checked gas mileage 90% of the time I fill up and I put 50-75,000 miles on my truck each year :doah:
     
  3. 1meanm1009

    1meanm1009 Registered Member

    Joined:
    Apr 3, 2005
    Posts:
    70
    Likes Received:
    0
    Location:
    bayarea,ca/mesa Az
    Ive got a 6.2 blazer 4.56 gears and 35" tires but a th400 and i commute with it averaging around 17-20.
     
  4. blaz_mem

    blaz_mem Registered Member

    Joined:
    Jul 21, 2005
    Posts:
    36
    Likes Received:
    0
    Location:
    Louisville, Ky
    thanx

    Hey guys thanks for the info it really helps. I just need to get my rebuilt 6.2 back in and my turbo to get here.
     

Share This Page