My Engine picture. What is it?

1966 G10 Van

Here is an engine picure:



Here is an image of the Compliance label on the door:



The VIN # is - G1256P136043

Can someone tell me what the engine is from all that?

Heavy

Heavy,you'll have to go to the engine block on the side for specifics .Look for stamped numbers to the left rear of distributor.That'll be more helpfull breaking down the code. ( eg: PV,PC,BA)

Looks like a 250. But the number on block above fuel pump will tell you for sure.

Ok. I have the numbers off my block. The ones by the GM stamp are as follows:

3921968 (above the GM stamp)
37 (below the stamp)

Here are the images in case I'm not showing the correct numbers.

The first is a picture of the full area and the the next ones are close ups of each area from left to right.









So??? What is it? Anyone??
Heavy

I just ran across the chart below. It says I have a 230-250. So now how do I determine which one it is?



Heavy

Don,
Do you have this chart for 2nd Gen's?

Paul,
That's the same cast number I have in my 2nd Gen parts van....

Dan

Don,
One more question?

Do you or anyone know what this tube on the Head is for?
It's on the parts van....

Hey Dan,

So if its the same engine, how do you tell on yours whether its a 230 or 250?

So, with that being said. Does the 230 and 250 use the same pistons? And would these spare new box of 230 piston rings work in my 250?

I can tell you that a 230 and a 283 use the same pistons.

Cool! Thx Don. Think with this info I figure out whats in the parts van..

Dan