1969 gmc 2500 2wd

[littledeuce2]

Hi Guys/Gals
1st post and I something I want to share with you. I dont own a 69 GMC but am working on one for a customer. It seems that most of my buddies have 67-72 trucks and i'm sure I'll end up with one sooner or later but I just had to let ya in on this.

Kenton (my customer) came to me with what started as a basic re-seal on the 350 engine and a new set of tires. Fair enough. I pulled the engine, found broken engine mounts and the engine bay was disgustingly dirty. 140,000+ miles on the truck. It has been repainted once and it was to only freshen things up as truck is in great condition.

Upon a visit from Kenton, we went over a list of things extra he wanted taken care of. And at the time we discussed sending the engine out to be re-rung. So off to the machine shop it went. Days went by and I received a phone call from the Machine shop manager. He asked if I knew what I had. Kind of confused I answer " of course...a 350..?" Well he says its not just a 350, its an LT1, steel crank,forged pistons etc.. WoW! I'm onto something here! Immediately I call Kenton to let him in on the news and get some background info on this truck. His father bought it from the 1st owner who apparently worked for GM. The truck came with the engine according to this fellow who ordered it. Kenton and his Dad remembered being told something unique about the truck way back when but didnt think much of it.

I'm posting a few pics of the truck and some engine pics. I will get a better pic of the front deck #'s on the engine.

As it turns out, I ended up pulling the inner fenders and the rad support. They were sent out for blasting and paint. We prepped the frame and pile of other parts.

I'm looking for some info. How many trucks came like this? Was the LT1 and option back then. I would guess its pretty rare as I've never heard nor seen a truck like this to have such a power plant.
It came with a 4 core rad. original to the truck. It has no a/c. the a/c trucks only came with the 3 core from my research. It has 4 wheel drum brakes. Turquoise in color, turbo 400 trans.