I ended up with a 64 GMC truck I don’t want or need . I have a guy who wants to trade me this engine but he’s a couple of hours away and I’m not sure what type of old Hemi it is , 331,354,392 or other.

I see some raised dimples in the valve covers does this mean anything? It’s in a non titled 55 or 56 dodge truck.

I know the 354 and 392s are more desirable and some 331s have an attached bell housing
I need to know where to have him look to check for numbers to ID it ?