1. Survival Motorsports started with an early Buttermore Cleveland aluminum block for this build. The block required some finish machine work, including drilling an oil gallery or two. Barry stated it was more or less a prototype piece that Survival helped refine with the aid of its in-house machinist, William Blair. “The block required two cam bearing sets—one was the Ford Racing set for journals two through five, with all outer diameters being the same. Journal number one was traditional 351 Cleveland sized. The cam tunnel block was originally line-bored to the smaller dimension of number one as well. This needed to be machined oversized to accommodate “normal” Cleveland camshafts. I believe that this has been addressed in current blocks,” Barry explained. The cam, already fitted here, is a Comp Cams hydraulic roller grind; 236/244-degrees duration, lift is 0.600/0.606 on an LSA of 113 degrees. Survival installed it at 108 degrees.