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Big Chief Chevrolet Big Block Head – 555.00 CC Port, 56.00 CC Chamber

Your Price: $7,752.08

SKU: 18575179

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Dart Big Chief CNC Aluminum Big Block Chevy Cylinder Heads

Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 RPM, over 500 cubic inches. An updated Dart Big Chief 385 program incorporates a 2.500 in. intake valve for a dramatic increase in air flow. Big Chief heads have dominated in Sportsman classes since their introduction, and we have continued to improve the design with the latest Pro Stock technology. With our sophisticated CNC machining programs, we can tailor a pair of Big Chief 14 Deg CNC heads to fit your exact engine combination. Copper seats are standard and assemblies come with Titanium valves.
Heads are sold individually

SKU: 18575179 Categories: , ,

GTIN: 00807051010657



CNC Ported


Combustion Chamber Volume

56.00 CC

Exhaust Valve Diameter

1.850 IN

Intake Valve Diameter

2.500 IN

Port Volume

555.00 CC



Valve Angle

11 DD

Valve Spring Diameter

1.650 IN

Engine Type


Product Type

Engine Cylinder Head