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#1 |
Registered User
Join Date: Jul 2010
Location: Portland, Oregon
Posts: 411
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LQ4/LQ9 4l60 Gas Mileage, 72 4x4 k5
This is a question for anyone who has converted to an lq4 or lq9 or any ls for that matter. I am trying to find out about what gas mileage i could expect from installing these in a 72 4x4 k5. does anyone out there who has already done this know about what to expect on average? with gas prices going up, i am not sure if I want to do the LQ4 or go to an LM7. Thanks all.
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#2 |
Workin to live...
Join Date: Jun 2003
Location: Texas Hill Country
Posts: 261
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Re: LQ4/LQ9 4l60 Gas Mileage, 72 4x4 k5
Haven't done it, but would like too. If you're looking for gas mileage, then I'd go with the 5.3L as that's what I have in my '05 sub, and I can get as high as 21 mpg on the highway with a light foot. I don't think you'll ever see a 6.0L get that unless it's in a Vette!
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Jason |
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#3 |
GEARHEAD
Join Date: Aug 2003
Location: MN
Posts: 6,122
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Re: LQ4/LQ9 4l60 Gas Mileage, 72 4x4 k5
We have the 6.0 in my wifes Yukon XL denali and it will get 18-20 on the hwy without much headwind or with a tail wind and about 16 into a wind. That is in a 6000 lb truck with awd. I would think loosing 2000 lbs would vastly improve the mileage.
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If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 ![]() 72 ![]() HG's Plow Truck '78 ![]() Bigass Farm Truck HG's thread of miscellaneous stuff |
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#4 |
Registered User
![]() Join Date: Jan 2007
Location: Central Coast California
Posts: 1,026
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Re: LQ4/LQ9 4l60 Gas Mileage, 72 4x4 k5
My LQ9 in '71 K5 with 4"lift, 35" MTs, 4L60e, 4.10 gears, no top and a medium foot gets about 10.5mpg overall. Local with some highway driving. That was 1-2 months after the rebuild...I haven't checked it lately but I doubt it's changed much.
It's too easy to get on the gas because it moves and sounds good!
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1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold ![]() 1972 C10 5.3L/4L60E 12bolt 5Lug - Sold ![]() 1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!! ![]() 1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold ![]() ![]() ![]() 1984 K10 SWB 7.4L/4L80e/NP208 Corp 10/12 bolt Sold ![]() 1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70/3.73!!! (Sold) ![]() 2003 K2500HD 8.1/Allison1000/NP263 ![]() |
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