I have a 64 c10 and want to identify for sure the engine size currently in the truck.
An old hot rod builder said it did not come with a 230 straight 6 and the guy I bought it from says that is what it is.
The numbers that are CAST into the block are 3994257 with a large GM under that and a 65 under that
The numbers stamped into a plate just behind the distributer are, as best as I can make them out 1101C3J and some numbers under that and I can't make those out.
So any idea what motor this is?
On the body is 4C144S189609 but that number means nothing since I do not know if this motor is original to the truck.
Thanks as always,
Scott
