The hardest part may be finding a 428 CJ that's rebuildable and possibly the $$$ to get it. Not to discourage, but 428 CJ's are collectors items in themselves. How about a 351W stroked to 427? Would bolt right in with plenty of room. Lots of after market stuff readily available. Just another alternative.
Rev
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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.
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