I don,t have a dyno but ,well factory numbers are 502hp/502 tq but is VERY easy to get 550hp/550 tq from one set up like that with the custom EFI. and they seel engines strait from chevy that clock at 575-700 hp
the august 1998 VETTE magazine shows how to do the swap, an all aluminum BBC weighs LESS THAN an IRON sbc engine. a BBC wit aluminum heads,waterpump, and intake only weighs about 70lbs more than a stock iron sbc engine, not really enought to notice!
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