Re: 402 block numbers
KNAPPY,
Jeff seems to have found it. According to Chevy by The Numbers it was used in 1972 on Passenger cars, Chevelle and Camaros. It's supposed to be a 402/240hp, 2 bolt main block according to the book, but he also states that there's a lot not known about this block. I looked for the XXW code and couldn't find it in the book. Maybe it's originally from a truck. Chevy By the Numbers doesn't say a whole lot about trucks.
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Mark
1966 L72, 4spd Caprice
1974 Z28, M40 Camaro
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