|The NEW DART PLATINUM Pro1 Heads have redesigned ports using Dart's exclusive wet-flow technology that conditions the intake charge to produce a more homogenous air/fuel mixture in the cylinders. The result is more efficient combustion and more output. This new head consistently produced gains of 24 peak HP and 20 HP across the operating range.
PRO1 aluminum cylinder heads for small-block V8s deliver advanced airflow technology at an unbeatable price! We have improved the original small-block design with extra-thick decks and high-capacity water jackets that increase reliability in high-performance applications. Hardened exhaust seats and long-lasting mag-bronze valve guides significantly extend cylinder head life. PRO1 heads are engineered for easy installation.
They use standard small-block pistons, headers, and valvetrain components, and are bolt-on replacements for most conventional 23 degree heads. Available with 64cc or 72cc combustion chambers and angle or straight spark plugs.
Assemblies are available for hydraulic roller, flat tappet and roller cams.
- 230cc intake ports
- 64cc or 72cc chambers
- Angle or Straight plugs
- 2.080 x 1.600 stainless steel valves
- Hyd Roller & Flat Tappet springs - 1.440 dual, 120lbs closed, 325lbs open, max lift .600 in
- Roller cam springs 1.540 dual, 195lbs closed, 495lbs open, max lift .675 in
We Specialize in Custom Assemblies with Upgraded Springs, Valves & Retainers