Popular, replacement Vortec head eliminates the costly and time consuming chore of finding suitable, ready-to-use cores. Cast iron head, which is a direct replacement for '96-02 350 cu. in. (5. 7L) "062" and "906" castings, offers a superior port finish for improved air flow, thicker decks, redesigned water passages, CNC-machined guides and seats, and a three angle valve job. head have 170cc intake ports, 64cc combustion chambers, and accept 1. 94" intake and 1. 50" exhaust valves. Sold individually as bare castings.Pit Stop USA offers EngineQuest Vortec Cast Iron Cylinder Head - (Bare) - SB Chevy Vortec 1996-2002 - Intake Runner: 170cc, Combustion Chamber: 64cc, Intake/Exhaust Valve: 1.94", 1.50" CH350C at low everyday prices. Be sure to check out all of our products from EngineQuest including EngineQuest Cast Iron Heads - Small Block Chevy.