GMC V12 Fire Truck

[skyking1]

Too much cabbage for an old fire truck, but notable.
https://seattle.craigslist.org/kit/hvo/d/port-ludlow-gmc-12/7853254635.html

here is the website the seller was referring to.

https://thunderv12.com/

 

[Truck Shop]

I missed this.
*
People are looking for anything that's old and piston powered to make a buck. If it was a
useable piece it would be one thing, but a 702 really isn't worth much except to a person
in the oil business.

 

[Steve Frazier]

Local fire department used to have a yellow GMC cabover they called Yellowbird. I sent the link to one of the members to see if it might be it. They sold it to another fire department, I don't know where.

 

[terex herder]

Quite a few of those V12 were out in the western Kansas down to Texas panhandle pumping irrigation water from deep wells back in the day. A lot were ran on free wellhead gas.

 

[Truck Shop]

Quite a few of those V12 were out in the western Kansas down to Texas panhandle pumping irrigation water from deep wells back in the day. A lot were ran on free wellhead gas.

That was a good place for them, in constant truck use keeping them tuned was constant.

 

[JaredV]

For the folks that come along after the ad disappears.

 

[JaredV]

 

[Truck Shop]

And a must when changing plugs on the old V6-V12--using a blow gun to remove all the
dirt and debris from around intake manifold/manifolds because the plugs are vertical
located in top of cylinder head. Many had made the mistake and items fell into cylinders,
like little rocks/pebbles.

 

[pittsburgh cat man]

would that be the old turaflow engine??

 

[Truck Shop]

would that be the old turaflow engine??

Correct--all were derived from the Toro-Flow. Several different cubic inch displacements. The
V-12 was hatched from the idea of two 351's to make 702. But it was a one piece block, many
have thought it was two 351's mated, but not. It just had four cylinder heads. The gas & diesel
V-6's were close in design. And they made the 351, 478 & 637 diesels out of the design basically
changing cylinder head ports/chambers & pistons.

 

[skyking1]

IF I wanted a vintage fire truck it would have been this Crown with the Hall-Scott.

 

[Truck Shop]

F I wanted a vintage fire truck it would have been this Crown with the Hall-Scott.

Paint it yellow and would have a Crown school bus.

 

[eastroad]

And a must when changing plugs on the old V6-V12--using a blow gun to remove all the
dirt and debris from around intake manifold/manifolds because the plugs are vertical
located in top of cylinder head. Many had made the mistake and items fell into cylinders,
like little rocks/pebbles.

Truck stop, the Ford 391 ( Y block?) family could do that, too. BTDT. The GMC 351 was in that GMC family, too. The Texaco distributor in Burlington, VT had a local use single axle GMC tractor with the 702 V-12 in it back in ‘67-‘68. Freshly tuned, it sure sounded sweet pulling the hill up by the shop.

 

[Truck Shop]

Truck stop, the Ford 391 ( Y block?) family could do that, too

The 391 was a {FE}-Ford Edsel designation, and those could collect crap too but not like
the gas GMC's because there was distance below the plug. There was the 305, 351, 401
& 702. The truck that picked up milk at our dairy was a 1963 Jimmy with a 702 single drive
axle, 5 with 2 speed and 5" straight stacks. Just like the one below, even same color.
Could be heard coming from over a mile away.
*

 

[Welder Dave]

When it comes to noise is there anything better/worse than an engine from GM?
The fire truck has a Van Pelt badge. Should also have a pic. of Linus and his security blanket.

 

[Truck Shop]

When it comes to noise is there anything better/worse than an engine from GM?

As far as the term on the {pipe}, Ward Rugh trucking in my old home town had some
1091 Hall Scott's with straight pipes. It was said {On a clear crisp frosty morning those
could be herd on the old highway as far away as the city wells, which was about 4 miles}.
And you had to be looking straight at a Rugh driver to talk to him.

 

[cw4Bray]

What's in a name ? GMC

1901: Max and Morris Grabowsky founded the Grabowsky Motor Company, which became the Rapid Motor Vehicle Company in 1902 to produce commercial trucks in Pontiac, Michigan

 

[Truck Shop]

Max was know as the big Grabowsky in his neighborhood.