Engine identification....?

Here are the numbers in front of the passenger side head....  V0525CGC  11J203468  Cast number 3970010

I know that it's not numbers matching but I would still like to know as much info about the engine as possible. I know it's been rebuilt / remanufactured because there is a tag located on the drivers side of the block (see pic below) no company name. It also has the over-heat buttons on the freeze plugs.

So far I have found that 3970010 means a 350, the CGC is the suffix code and is either from a 71 El Camino 350 auto trans 245 HP with a 2 barrel carb or it's a  standard trans police / taxi 245 HP with a  2 barrel carb. I can't believe they even made standard trans police or taxis.

Is the above correct....?  If so any way for me to tell which vehicle this engine came out of maybe from a plant code or such....?

Brian  

It's back together....

I'm almost done...Got the get the rear wheels back on and put her back on the ground. While I was at it...I went ahead and hardwired in my trickle charger hook-up cable....Now I just have to plug it in under the rear wheel...No more extension cable thru the window. I was asked about my extra temp gauge so I posted pics of where I have it mounted below as well.

Brian

Got most of the rear back together....

Started by putting the gear oil and anti-slip back in the differential...It held a little over 1 1/2 quarts plus the anti-slip so I guess I got just about all of it out. everything is back assembled except the spare tire carrier. I still have get a new spare.

Brian

Got the differential gear oil sucked out tonight....

What a pain...I ended up connecting a smaller rubber tube to the large one on the suction gun I bought...I think I got most of it out....I'll know tomorrow when I fill it back up.  I know it leaks and I have no idea when it was last changed or topped off but I could barely reach my finger in the hole to reach oil.

It's supposed to hold approx. 1 1/2 quarts of 80w-90 and 1 bottle of GMC anti-slip additive.

Brian

Reference pics....

So I know how everything goes back together....

The rear frame paint is FINISHED.....

It was time consuming but not really a difficult job....I'm glad it's done.  I'll tackle the leaf spring, half shafts and trailing arms next winter when I service the rest of the rear suspension. For now I just have to put everything back together. Got a car show on April 2nd.

 Brian