Details
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, hydraulic roller , flat tappet and roller cams.
- 200cc intake ports
- 64cc or 72cc chambers
- Angle or Straight plugs
- 2.020 x 1.600 stainless steel valves
- Hyd cam springs - 1.250 single, 110lbs closed, 280lbs open, max lift .510 in
- 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
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Additional Information
Manufacturer | Dart |
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