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| Home >> Cylinder Heads >> Dart >> "Big Chief" | |||||||||||||||||||||||||||||||||||
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Dart Heads- "Big Chief" Aluminum
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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.
You can spend hundreds of hours and thousands of dollars modifying other castings to get the features that Big Chief heads give you in an out-of-the-box package. 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 porch! Raised exhaust ports produce outstanding airflow. Raised and machined valve cover gasket surface prevents oil leaks Shallow combustion chambers require smaller dome volume to produce high compression ratios. Interlocking ductile iron valve seats are compatible with stainless and titanium valves. Gasketed 3/4" reach spark plugs are centrally located in chambers to speed up flame travel. Material: High density 355 T6 aluminum Valve Angle: 18° intake with 9° exhaust, 14° intake with 7° exhaust Combustion Chambers: 118° 85cc as cast 14° 74cc as cast Intake Port: 395cc as cast, 475cc with full CNC porting Exhaust Port: 175cc as cast Intake Valves: 2.325", 2.400", 6.600" long Exhaust Valves: 1.900", 6.450" long Valvterain: Shaft rocker system required, .180" offset intake lifter Spark Plugs: Gasketed 3/4" reach plugs | |||||||||||||||||||||||||||||||||||
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