The Edelbrock part #77949 Big Block Chrysler Max Wedge Victor Series cylinder head is used by many of the best racers in the country and are the best choice for all-out competition. Edelbrock engineers work with leading racers like Billy Glidden John Urist and Pat Musi to produce the ultimate components for racing. The end results is a competition ready cylinder head that features a cylinder head which is compatible with OE valve train and pistons for bolt-on convenience while Victor cylinder head features raised runners revised chambers and relocated valves for all-out competition. VICTOR B/B CHRYSLER MAX WEDGE FEATURES: - The best standard port location cylinder head available for competition big-block Chryslers - Intake ports are raised .650" exhaust ports are raised .250" for improved flow - The intake flange is extended .950" to eliminate the need for intake spacer plates - Cylinder head will fit Edelbrock Victor manifolds for both high and low deck engines - Sold without springs or retainers; use recommended springs to match your camshaft - Exhaust flange is extended .300" from stock (same as Mopar Stage 6) featuring dry exhaust bolt holes with Heli-Coil thread inserts - Max Wedge intake ports are machined to match intake manifolds for B and RB competition big-block Chryslers - 72cc combustion chamber volume - Cylinder head part #77949 comes bare with valves only