This is a Rolls-Royce Griffon 74, originally produced for World War II-era aircraft during the 1940s. It's a massive, supercharged V12 engine with a 37-liter capacity, featuring an aluminum block and mechanical fuel injection. Notable modifications in the 1980s allowed its use with Miss Budweiser, a renowned racing hydroplane. Currently offered by Bring A Trailer based in Carnelian Bay, California