Quote:
Originally Posted by Jim Bailey
Thanks for the info on the carbs guys! The 1964 manifold is legal on a '63 as are the 518 '64 heads. ( although they can be cut to 81 cc.) The '63 415hp Engine (low comp.) uses a slightly different piston spec than the '64 per NHRA, however, the High Comp. '63 and '64 pistons are the same. The Engine I'm selling is a legal Low Compression 415hp 1963 Engine. Also, I think you could get away with running '63 carbs on a '64, I don't know why you would, but, given the state of "stock" they'd probably let you go since the carbs are too small ! One more piece of info ....a little birdie told me that the '63 ('63 only) 415hp engine will be 405HP in 2011.
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The 63 415 HP has been 405 HP in IHRA for a couple of years now. Must run the smaller carb's on the 63's and the larger carb's on the 64's in IHRA. Who knows what kind of *&^@# NHRA allows these days.