BBC Big Chief Heads

Dart Big Chief cylinder heads are the most powerful big-block heads you can buy! These heads put Pro Stock technology within the reach of every racer and engine builder. They have what it takes to win today: spread intake ports, shallow valve angles, efficient combustion chambers, raised exhaust runners, and a valvetrain that’s reliable at high-rpm.
NEW 11° and 14° oval port designs raise the performance bar even further, with flow rates as high as 545 cfm. With our sophisticated CNC machining programs, we can tailor a pair of Big Chief heads to fit your exact engine combination.
We have everything you need to build a complete Big Chief engine, including intake manifolds, valve covers, gaskets, and valvetrain components.
If you’re serious about winning, run with the Big Chiefs - or stay on the trailer!

Please call Dart at 248-362-1188 or contact an authorized Dart dealer to place an order for this item.
Big Chief Head Enlarge
Big Chief Chambers Enlarge
Big Chief Intake Ports Enlarge
Big Chief Port Enlarge
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DESCRIPTION  
Item BBC Big Chief 18 Degree Pro1 Bare
Material Aluminum
Intake/Exhaust Valves 2.40/1.90 Valve Job
Option
Description
Cylinder Bore
Intake Style Rectangular
Notes All cylinder heads are sold individually.
Part Number/s Part Number Reference Sheet
Download Specifications
DESCRIPTION  
Item BBC Big Chief 18 Degree Pro1
Material Aluminum
Intake/Exhaust Valves 2.40/1.90
Springs 1.625 Double
Option
Description
Cylinder Bore
Intake Style Rectangular
Notes All cylinder heads are sold individually.
Part Number/s Part Number Reference Sheet
Download Specifications
DESCRIPTION  
Item BBC Big Chief 14 Degree
Material Aluminum
Intake/Exhaust Valves Valve Job (Bare springs only)
Springs Bare
Option
Description
Intake Style Rectangular
Notes All cylinder heads are sold individually.
Part Number/s Part Number Reference Sheet
Download Specifications
DESCRIPTION  
Item BBC Big Chief 14 Degree Oval Port
Material Aluminum
Intake/Exhaust Valves
Springs
Description Full Port
Cylinder Bore 4.600
Intake Style Oval
Notes All cylinder heads are sold individually.
Part Number/s Part Number Reference Sheet
Download Specifications
DESCRIPTION  
Item BBC Big Chief 11 Degree
Material Aluminum
Intake/Exhaust Valves
Springs
Description Full Port
Cylinder Bore 4.600
Intake Style Oval
Notes All cylinder heads are sold individually.
Part Number/s Part Number Reference Sheet
Download Specifications