Quote:
Originally Posted by Pigeon
I wonder how many stock blocks the pro stock Pontiacs split in half. Was pro stock a 500 inch limit back then? If so the Pontiacs must have been a 4.5” stroke to get the cubes out of the limited bore size in the stoke block configuration…. ya think?
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The 500 cubes limit on prostock started around 1981. Everything was based on weight per cid before that.