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GMC V6 and V12 Engines Engine repair and rebuilding

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  #1  
Old November 2nd, 2016, 05:19 AM
1960gmcv12 1960gmcv12 is offline
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Default Gmc V12 in trucks

I'm a newbie but did gmc actually put V12 in trucks I've never seen a pic of one in a truck
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  #2  
Old November 2nd, 2016, 01:12 PM
bobdylan bobdylan is online now
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Default Re: Gmc V12 in trucks

Yes, 7000 series trucks, minuteman missile transporter, fire trucks.
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Old November 3rd, 2016, 01:05 AM
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GMCDAC GMCDAC is online now
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Default Re: Gmc V12 in trucks

Since I have this in one of my photo collections here's a pic of the GMC MinuteMan Missle transporter. I remember seeing them many times around here back in the day.

DAC
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Old November 3rd, 2016, 04:18 AM
bobdylan bobdylan is online now
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Default Re: Gmc V12 in trucks

I know a guy that has three of the transporter tractors, I was going to buy a v12 out of one with 10k miles. I thought about buying the tractor but ,not sure what I would do with it. He changed the gearing so you can run down the highway65+ before 45 mph was tops.
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Old November 3rd, 2016, 05:18 AM
1960gmcv12 1960gmcv12 is offline
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Default Re: Gmc V12 in trucks

Where they common in more mainstream gmc heavy truck like tractor trailers
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  #6  
Old November 3rd, 2016, 08:34 AM
BobBray BobBray is offline
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Default Re: Gmc V12 in trucks

Wouldn't say they were real common in over-the-road trucks, but they were out there. Kingsway up in Canada ran them for many years:

http://www.hankstruckpictures.com/kingsway.htm

I think Texaco and/or Mobil used them to pull tankers as well. Regardless, I think a lot of the V-12 powered trucks ended up as fire apparatus, where large gasoline engines were favored over diesels until the 70's.
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Old November 4th, 2016, 12:11 AM
turbobill turbobill is offline
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Default Re: Gmc V12 in trucks

Our county had 5 tandem dump trucks (65's) WITH V12'S
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Old November 4th, 2016, 12:30 AM
bobdylan bobdylan is online now
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Default Re: Gmc V12 in trucks

Are there any pictures floating around?
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  #9  
Old December 13th, 2016, 11:25 PM
BillT BillT is online now
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Default Re: Gmc V12 in trucks

Quote:
Originally Posted by bobdylan View Post
Are there any pictures floating around?
There are some online.

Just google 702 V-12 GMC and hit Images.

The V-12 ended when the 637 V-8 was introduced which I believe was in '66.

I used to drive a '71 with a 637, but never had the opportunity to get behind a V-12.

Bill
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Old December 17th, 2016, 01:33 PM
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Default Re: Gmc V12 in trucks

Here is a GMC L-7000 with a Tinw-Six
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