Just received my Sept 2012 Hemmings Muscle Machines, and a feature story is on Bill Wickman's 1967 Impala SS427, with a 425hp L-72. Supposedly, none were built, yet he has one, and has owned the car for 30 years. No documentation exists. Bill scored 992/1000 points at the MCACN show, and three judges agreed the car appeared to be authentic.
There's a mention that eleven L-72 full-sized cars were built, which includes Biscayne, Bel Air, Impala, Caprice, and station wagon models. But no one is sure if Bill's 4-speed Impala SS 427 is authentic, as there is no paperwork.
Couldn't Bill trace the previous owner(s), or obtain the original title through a service, which should have the hp rating of his car? I seem to recall that titles state the hp rating, make and model, and the original title should show the 425 hp rating (or however the state of California describes it).
What a cool car though, and I'll bet this thing flies.
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