Pair of new Brodix BB3 Extra heads for a BBC. 119cc chamber, 345 cc intake port, 2.3" intake valve, 1.55" dia spring, 240# seat pressure. Jegs #158-2031014. New, never used on an engine. Profiler Sniper Jr. Intake, ported to match the same intake gasket as the heads use. Intake is set up for nitrous and EFI. Includes two sets of intake gaskets and intake bolts.