If the Engine is original, it has to be a 348. The 409 wasn't available until '62. But the best way to tell is by the Engine Code on the Pad.

Pretty interesting truck by the way.

Last edited by C10 - C90 Bill; 10/15/2020 3:59 AM.

'60-'72 Chev/GMC Fan
GMC 9500 Fan
Detroit Diesel Fan