Using proprietary Speed Flow™ technology, Dart has developed more efficient port designs with improved velocity and flow capabilities. The combustion chambers and ports have been redesigned for greater breathing characteristics and more controllable combustion. Casting walls are cleaner and more consistent, resulting in better control over flow and heat.

More From This Category

SBC/SBF 8mm Stainless Steel 1.600  X 5.030 O.A.L. Inconel Exhaust Valve, Set

SBC/SBF 8mm Stainless Steel 1.600 X 5.030 O.A.L. Inconel Exhaust Valve, Set

$739.32

Trick Flow Cylinder Head, Super 23 175, Fast As Cast , Assembled, 1.470 in. Springs, For Chevrolet, Small Block, Each

Trick Flow Cylinder Head, Super 23 175, Fast As Cast , Assembled, 1.470 in. Springs, For Chevrolet, Small Block, Each

$1,902.40

BBC 24° Stainless Steel 1.880 x 5.450 O.A.L. STD 11/32 Tulip Race Exhaust Valve, Set

BBC 24° Stainless Steel 1.880 x 5.450 O.A.L. STD 11/32 Tulip Race Exhaust Valve, Set

$359.67

BBC 18° 11/32 Inconel 1.800 X 5.935 O.A.L. Tulip Race Exhaust Valve, Ea.

BBC 18° 11/32 Inconel 1.800 X 5.935 O.A.L. Tulip Race Exhaust Valve, Ea.

$87.42