Goodwin, Chevy SB CNC Pro Ported Brodix Iron Killer Heads, Assembled, Pair
Goodwin Competition CNC Pro Ported Brodix Iron Killer Chev SB Heads
Assembled with lightweight 8mm valvetrain
The latest in wet flow technology produces a minimal cross sectional area with max velocity air flow. Full attention is applied to each intake runner, exhaust runner, chamber and bowl area, for the best flowing heads of their class. Designed for use with 8mm valves for increased air flow.
Assemblies include: 2.055/1.600 stainless steel valves with 8mm stems, ovate inverted conical valve springs (hyd./mech. flat tappet or hyd. roller to .620" lift), lightweight small diameter steel retainers, bead lock valve locks, spring seats, ARP rocker studs, and guide plates.