Known as the "Big Brodie", the BB-series aluminum heads for the Chev BB, features 119cc combustion chambers. Heads include Brodix stainless steel valves, 1.550" dual with damper roller valve springs, 10° steel retainers, 10° valve locks, valve bowls CNC blended, port matched, competition 3 angle valve job, guide plates and rocker studs. Designed for the smaller engine turning 6800 rpm or less, a 396, 427 or 454, or a oval track dirt modified engine. Prices per head.