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#1 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Gas Milage?
hey there guys, im looking for a winter truck to drive while the 69 is in storage.
ive stumbled across a 72 chevy Stepside SWB 4x4 with an automatic and A/C. ...its also has the tilt steering. its got a 327 from the factory...everything else on the truck is stock as well. if it was tuned real nice...what kind of milage could i expect out of this truck... I only own 2wd trucks, so i dont know how the 4x4s do. thanks...
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#2 |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: Gas Milage?
The best I saw with my mostly '71 4x4 is 13.5. That was with a tired 350 and 3-speed manual.
Now with a 383 and th350 auto I see 9.5, mostly towing my boat. When my ship comes in I'll be swapping the th350 out for a 700r4. In theory that should get me back to 13 on the highway, when not towing.
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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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#3 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: Gas Milage?
327, and its a stock '72 ? Interesting Sounds loaded if it has a tilt and ac though -- i'd guess 10 - 12 (max 12). Back when these trucks were designed, gas was cheap and 9-12 mpg was just part of the deal, nobody thought anything about it
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#4 |
Next!
Join Date: Jan 2003
Location: Eastern Pa.
Posts: 2,482
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Re: Gas Milage?
My 72 K10, 350 Auto (4x4) with 15" tires and 3:08 rears gets about 12 mpg. FYI, No 327s offered as late as 72, either 307 or 350 for V8 4x4s.
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86 K30 CUCV M1028A1 86 K30 CUCV M1028a2 dually 86 K30 C&C 6.2 4:56s, 4M, 11,000 gvw, ex fire truck, now lowboy dump More square bodies and CUCVs than I care to admit to 2020 Silverado K3500HD Work truck |
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#5 |
Senior Member
![]() Join Date: Jan 2002
Location: Williston, ND
Posts: 2,999
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Re: Gas Milage?
Somethings up with the 327. Last year in trucks for the motor was 68 and cars 69. The 350 replaced the 327. If it has a sb auto and 3.08 gears, I don't think 14-15 would be out of the question with an excellent tune-up, hei, etc. Just remember, on the highway, these trucks do suck the gas, but if you were to cruise county roads at 55, I would think 14-15 is probable. If you're looking for good gas mileage, buy a honda, if you're looking for something fun and exciting, go for it. Sounds like a nice truck. hope this helps.
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68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi |
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#6 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Re: Gas Milage?
see thats the thing, I've already got fun and exciting with the 69. but i cant drive it year round, nor could i afford it year round.
so what would be perfect for my to drive daily would be a truck with a 292 or 250 in it. but since those are extremly rare to find in 4x4, im looking at small V8s...I.E 327. ...i did think i was odd to find a 327 in that late of a model year, but the rest of the truck looked so un-disturbed, i took his word for it.
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#7 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: Gas Milage?
Is it originally a Canadian truck? Maybe they used the 327's still for Canadians --- who knows
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#8 |
Project: years too late.
Join Date: Dec 2007
Location: Almonte,ON,Canada
Posts: 550
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Re: Gas Milage?
No GMC & Chevrolet discontinued the 327 in 1969....unless the truck is a 67-69 with a 72 front clip, that would make sence.
oh yeah, my guess with a tuned 327 is 15-18 mpg. My dad had a 327 in his 78 sierra (came from a 69 C10)
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1971 C10 Stepper LSX 5.3/4L60E 3.73 12bolt posi. Father Son Project. In Memory of Bruce C. Shorten. Rest easy Dad. Ill take it fryom here. Last edited by Ol'Rover; 01-08-2008 at 01:48 PM. |
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#9 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: Gas Milage?
i think thirteen is pretty close to the best you'll get. my 71 shortened k20 has gotten a best of 11 with a 305 350 and 4.10 gears and 33" tires. my first tank in it yealded only 4mpg
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#10 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Re: Gas Milage?
the ad says as a title: 72 chevy stepside...
although it does have a GMC grille on it....and i dont know the GMC grilles well enough to tell what year the grille is. you can barely see it in the pictures, you see one and 1/2 headlights on one side. WIBILLY: my dad drives a transport truck on occasion for the company he works for. he takes them down to nashville for a big pumper show. He figured it out one time, he took a sterling with a 450 hp cummins motor in it, and a full size strait truck. and he averaged 9 mpg. you would have done better driving a semi then your C-10 ![]() but thats all part of the game ![]()
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#11 |
Senior Member
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
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Re: Gas Milage?
my c10 is a k20
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common sense isn't so common anymore |
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#12 |
Project: years too late.
Join Date: Dec 2007
Location: Almonte,ON,Canada
Posts: 550
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Re: Gas Milage?
ask for more pictures? and then google 72 GMC and see if u can match the grill, or if your near by go check it out and check the buildsheet it should mention the year there somewhere?
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1971 C10 Stepper LSX 5.3/4L60E 3.73 12bolt posi. Father Son Project. In Memory of Bruce C. Shorten. Rest easy Dad. Ill take it fryom here. |
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#13 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Re: Gas Milage?
yip. the email left as soon as i saw the truck advertized...if they come back and look decent...i will be stopping in.
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#14 | |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: Gas Milage?
Quote:
dude, you're high. 15-18 is what a new truck gets with an LS series motor. My bro has a new truck with a 6.0 and it only turns 13, and he drives like a grandma. Those old trucks just rarely get better than 12 I ran a stock 307 2bbl GMC (with th400) that never got any higher than 11 mpg --- then i swapped to a 4bbl - also 11. As far as gearing goes ----- i switched from a 3:07 to a 4:10 or 4:11 and it only knocked it down to 10. My th350 truck gets 12, because the transmission is more efficient ,
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#15 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Gas Milage?
Dp
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 01-08-2008 at 07:10 PM. |
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#16 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Gas Milage?
Dp
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 01-08-2008 at 07:10 PM. |
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#17 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: Gas Milage?
Quote:
Now you mentioned your brother is getting 13 mpg with a 6.0L. That means it's either a Silverado SS, and Ext Cab LTZ, or a C or K2500, all of which are MUCH heavier than a 67-72 regular cab 1/2 ton truck. You are comparing apples to oranges. Look at the curb weight on them. Silverado 1500 Regular Cab Standard Box 2WD - 4,453 4WD - 4,678 Regular Cab Long Box 2WD - 4,594 4WD - 4,946 Extended Cab Short Box 2WD - 4,994 4WD - 5,226 Extended Cab Standard Box 2WD - 5,105 4WD - 5,345 Crew Cab Short Box 2WD - 5,135 4WD - 5,379 Silverado 2500 Regular Cab Standard Box 2WD - 5,308 4WD - 5,554 Regular Cab Long Box 2WD - 5,596 4WD - 5,847 Extended Cab Short Box 2WD - 5,735 4WD - 6,606 Extended Cab Standard Box 2WD - 5,742 4WD - 5,983 Crew Cab Short Box 2WD - 5,899 4WD - 6,169 5,308 5,596 5,735 5,742 5,899 -5,554 5,847 6,006 5,983
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 01-08-2008 at 07:11 PM. |
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#18 |
Senior Member
![]() Join Date: Jan 2002
Location: Williston, ND
Posts: 2,999
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Re: Gas Milage?
6.0L are KNOWN and PROVEN to get 11-13 in 2500HD. It's part of buying a truck like that, they don't get good mileage. I believe my 72 402/th400 3.08 1/2 gets around 15 if you drive it decent. I small block th350 should do better, but a lot depends on the driver, his or her foot, and the motors tuning. I can pull 15 out of a small block th350 truck, i know cause I did it for about 3 years driving a 68 gmc with 350/th350 3.08 posi.
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68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets 68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction 69 Chevy Camaro SS, 383, 4 speed, positraction 70 Chevy El Camino SS396, Triple Black, 454/th400, Tach 70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks 70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR 71 Chevy Blazer, CST, 350/auto 71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s 71 Custom/30, Open Road, 350/th400, tilt 72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi 72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi |
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#19 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: Gas Milage?
ok, ok, --- let me up, i've had enough ----- what you guys said
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Are you retired too? Nonsense! I'm in my prime |
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