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.
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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