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

Melling GM LS Beehive Valve Spring Kit, Max Lift: 0.625", Steel Retainer,  145LBS @ 1.800" Seat Pressure, 358LBS @ 1.175"Open, 1.100" Coil Bind, Kit

Melling GM LS Beehive Valve Spring Kit, Max Lift: 0.625", Steel Retainer, 145LBS @ 1.800" Seat Pressure, 358LBS @ 1.175"Open, 1.100" Coil Bind, Kit

$400.00