For this version, we stuck with a simple 0.060-inch overbore and used the stock crankshaft. After all, the crank looked good, as did the main bearing saddles, which were all in alignment. The new 4.420-inch bore size increases the displacement to 473 ci. Random factoid: The 429 and 460 are the two members of Ford’s 385 engine series. They were manufactured at the Lima Engine Plant in Lima, Ohio, and were in production between 1968 and 1997. We’ve seen dozens in the local self-service junkyards here in Los Angeles. Get one from a truck for cheap.