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Old October 14th, 2018, 06:38 AM
BillT BillT is offline
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Location: Moneta, VA
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Default Re: Gmc V12 in trucks

Quote:
Originally Posted by Cayoterun View Post
When people come with smaller kids to see it, I'll start it up, let it warm a little, then gradually start speeding it up. When the metal on the shop starts to rumble about 2100, close the throttle real quick, and then back-fires, blowing fire out the 4 exhaust pipes, that's when the stampede starts for the door.
On my '62 6500 with the 478 V-6, once in a while when driving a hi-way speed of about 55 to 60 for a length of time and then coasting some slowing down for the exit ramp, it would let out a back fire equal to an M-80.

The first time it happened it sure scared the heck out of me.
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Drove and owned many, but some of the more interesting ones were:

-'60 GMC 2500 Dump, 305 V-6
-'62 GMC 4000 Flatbed, 305 V-6
-'62 GMC 6500 Flatbed Dump, 478 V-6
-'67 GMC 7500 Box, 6V-53 Detroit
-'71 GMC 9500 Flatbed Dump, 637 V-8
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