I have a '62 C10 with a 235 and would like to upgrade to a bigger 6. My problem is that I don't know what is the best choice: 261 Chevy, 270 or 302 GMC, or a 292 Chevy. I was surprised to find this truck has no provision for side engine mounts (no holes in the frame). Althought I think the newer 292 might be a better choice, I can see there might be engine mount problems. I'm open to suggestions.
