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09-29-2008, 07:39 PM
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#1 |
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Registered User
Join Date: Sep 2008
Location: Burnsville
Posts: 70
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expected gas milage
Looking at buying a 1970 lifted chevy truck.its got a fresh 350 mild cam,4 speed tranny, w/t 3.73 gears and i think 38/15 tires.i was wondering what kinda gas milage do you think it would get, i know its not gunna be anything great but my daily driver now gets around 12.
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09-29-2008, 07:43 PM
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#2 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: expected gas milage
So you're looking to make an even move? I would guess you will get about the same with this 4X4.You may do a little better/worse depending on your driving habits.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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09-29-2008, 07:53 PM
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#3 | |
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Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
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Re: expected gas milage
Quote:
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69 Chevy 4x4 383 Power 
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09-29-2008, 08:15 PM
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#4 |
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Old Skool Club
 
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: expected gas milage
If was a new vehicle, you'd have to pay a Gas Guzzler tax on it....
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Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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09-29-2008, 08:32 PM
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#5 |
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Registered User
Join Date: Sep 2008
Location: Burnsville
Posts: 70
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Re: expected gas milage
Yah i dont drive alot and when i do i wouldnt really care about getting off fast or nothin if it means better gas milage. So im thinkin ill get it. i just like the looks of the old lifted trucks. i was just afraid i might only get like 8 or 9.
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09-29-2008, 08:35 PM
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#6 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: expected gas milage
I would expect 8 - 10, unless you have a LOT of freeway cruising, and keep your foot out of it.
Also, the terrain is important too... if "bville" (where ever that is) has a lot of hills, then I'd say 8 - 10 is a goal that you may not see. |
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09-29-2008, 08:40 PM
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#7 | |
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Senior Member
Join Date: Nov 2005
Location: AL
Posts: 2,519
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Re: expected gas milage
Quote:
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09-30-2008, 07:55 AM
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#8 |
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Registered User
Join Date: Sep 2008
Location: Burnsville
Posts: 70
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Re: expected gas milage
ok i got some more info the tires actually are 35/14.5,jkade would your 3:42 gears be better or worse then the 3:73. really like the truck so i think im going to buy it.even though im moving to duluth which is hilly,so ill have to drive slow.and find some other ways to save gas
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09-30-2008, 10:52 AM
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#9 |
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Post Whore
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,683
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Re: expected gas milage
Don't waste your time changing those 3.73's to 3.42's. Those 3.73's are about as high a gear as you would want. 4.10's are often a very good gear ratio for 35" tires.
I'll be surprised if you get better than 8-10 mpg. Those 35's are heavy, 14.5" is a a wide contact patch and your pushing a lifted brick. Enjoy it and don't focus on the mileage, otherwise you won't want to drive it.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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09-30-2008, 10:52 AM
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#10 |
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Post Whore
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,683
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Re: expected gas milage
Oh, btw, welcome to the board and post some pics of your truck once it is yours!
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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09-30-2008, 11:39 AM
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#11 |
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Registered User
Join Date: Oct 2007
Location: Fort Smith,AR
Posts: 1,305
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Re: expected gas milage
8-10, us 2wd guys with 350's, and 28in tires are only averaging 12-16mpg...lol. Old trucks are great, look good, and get a lot of compliments. I agree, don't look at the gas gauge, or it may make you sick, focus on looks, and driving it. I don't think any of us like the mileages, we love our Chevys though. IMO, just because the economy sucks, and gas prices are out the roof, doesn't mean that these old gas guzzlers have to all be left on feilds, and barns, and rust into the ground.
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09-30-2008, 12:23 PM
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#12 |
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Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,253
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Re: expected gas milage
When my 4x4 was a 350 with a straight stick, I got 10mpg in mixed towing my boat and running around town. The few times I took it out on the highway without my boat the best I saw was 13.5 mpg.
Expect those numbers. However if your speedo isn't tracking with a GPS or some other standard like 1 minute exactly between mile markers, you'll never know what you are getting.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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09-30-2008, 07:02 PM
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#13 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,862
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Re: expected gas milage
`72 K2500:350,TH350,3.54s,12.50/33s,12.5 mpg
`72 K20:400,4spd,4.10s,12.50/35s,12.5 mpg
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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