Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 RPM, over 500 cubic inches. The original Dart Big Chief put the spread port design on the map, winning three NHRA Pro Stock championships before being banned from the class. Dart gas applied the PRO1 design concept to the Big Chief in order to help make spread port technology more affordable for Sportsman racers. High flowing as cast ports combined with CNC machined chambers and bowls deliver awesome power. Big Chief PRO1 18° and 14° head assemblies include hardened seats and stainless valves. Copper seats and Titanium valves are optional. Heads are sold individually.

More From This Category

World Cylinder Head, Sportsman II, Cast Iron, Assembled, 64cc Chamber, 200cc Intake, For Chevrolet, 302, 327, 350, 400, Each

World Cylinder Head, Sportsman II, Cast Iron, Assembled, 64cc Chamber, 200cc Intake, For Chevrolet, 302, 327, 350, 400, Each

$1,216.06

View
Edelbrock Cylinder Head, Performer RPM, Aluminium, Assembled, 58cc, 176cc Intake Runner, For Dodge, For Jeep, 5.2, 5.9L, Each

Edelbrock Cylinder Head, Performer RPM, Aluminium, Assembled, 58cc, 176cc Intake Runner, For Dodge, For Jeep, 5.2, 5.9L, Each

$1,964.82

View
Dart Cylinder Head, Assembly, 320 Super Mod, 2.250/1.880/1.625D 4.310, Each

Dart Cylinder Head, Assembly, 320 Super Mod, 2.250/1.880/1.625D 4.310, Each

$3,749.66

View
Dart Cylinder Head, Assembly, 360 Full Port, 2.325/1.880/1.625D 4.500, Each

Dart Cylinder Head, Assembly, 360 Full Port, 2.325/1.880/1.625D 4.500, Each

$4,400.46

View
Trick Flow Cylinder Head, Super 23® 195, Fast As Cast®, Assembled, 72cc CNC Chambers, 1.470" Springs, Small For Chevrolet, Each

Trick Flow Cylinder Head, Super 23® 195, Fast As Cast®, Assembled, 72cc CNC Chambers, 1.470" Springs, Small For Chevrolet, Each

$1,680.08

View
Edelbrock Cylinder Head, Performer RPM, Aluminium, Bare, 72cc Chamber, 215cc, For Pontiac, Semi Finished, 389-455, Each

Edelbrock Cylinder Head, Performer RPM, Aluminium, Bare, 72cc Chamber, 215cc, For Pontiac, Semi Finished, 389-455, Each

$1,434.06

View