Rick Stauffer

I really appreciate your responses. Very helpful. R

Again thanks for the information and your patience in this dialog. Best I can see is a casting number 1557582 (see attached)--would that suggest a 289 block?

Would that be visible without removing the cylinder heads?

Thanks for the responses above. From those, I assume the cast in number at the right corner of the block isn't helpful. Given that this mystery motor is married with the supercharger and a 4-speed and that the car was at one time used for racing, is there any chance that it could be an R-3? Needless to say, I appreciate your thoughts.

Thanks for the response, I was unable to see an engine number on the top of the block left front (see attached photos). Any thoughts on where else to look? Much obliged, Rick