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/
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.
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.
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.
For the folks that come along after the ad disappears.
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.
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.
IF 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.
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.
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. *
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.
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.
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
Max was know as the big Grabowsky in his neighborhood.