You appear to be correct Mr. Old Dawg. This engine, a 1927 91 cubic inch Indianapolis motor, much more closely resembles mctim64's mystery engine than the Bugatti.
Great thread...love the big inline engines. M***ive, archaic wonders, they are. If ya like Buicks, this'll give ya a *****...lol.
currently thinking of emptying my bank account and getting a 49 Packard 8.. I feel the need for a BIG car to go with my T project's