Dart Machinery Pro-1 Platinum Aluminum Chev SB Head Sophisticated tooling and state-of-the-art casting technology produces a high flowing head at an unbeatable price. Extra thick decks, and high capacity water jackets for increased reliability. Hardened exhaust seats and bronze guides significantly extend head life. Accepts early and late model valve covers and accessories.
Part Type: Cylinder Head Application: Chevrolet Small Block Cylinder Head Material: Aluminum Bare or Assembled: Bare Combustion Chamber Size: 72cc CNC Machined Combustion Chambers: No Intake Valve Angle: 23 Exhaust Valve Angle: 23 Intake Port Volume: 215cc CNC Machined Intake Port: No Intake Port Flow: 276 cfm @ .600" Lift / 28" Intake Port Location: Standard Intake Port Shape: Rectangular Intake Port Dimensions: 2.150" x 1.190" Suggested Intake Gaskets: Fel-Pro 1206 or Equivalent Exhaust Port Volume: 75cc CNC Machined Exhaust Port: No Exhaust Port Flow: 180 cfm @ .600" Lift/ 28" Exhaust Port Location: Standard Exhaust Port Shape: Square Exhaust Port Dimensions: 1.375" x 1.325" Suggested Exhaust Gaskets: Fel-Pro 1404 or Equivalent Spark Plug Style: Angled Suggested Spark Plug: .750" reach Valve Guides: Yes Valve Guide Spacing: 1.890" exhaust moved .030" from intake Valve Stem Diameter: 11/32" (.3415") Valve Seats: Yes Valve Job: Multi-Angle Intake Valve Diameter: 2.050" Intake Valve Included: No Exhaust Valve Diameter: 1.600" Exhaust Valve Included: No Suggested Valve Length: 4.935" Valve Spring Pockets: 1.550" (Can cut .030" deeper MAX.) Valve Springs Included: No Valve Spring Application: NA Valve Springs Retainers Included: No Valve Locks Included: No Valve Seals Included: No Rocker Studs Included: No Guide Plates Included: No Valve Cover Mounting Style: Center Bolt and Perimeter Steam Holes Drilled: No Heat Crossover: No Suggested Head Bolts: ARP 134-3601 or Equivalent Suggested Head Studs: ARP 134-4001 or Equivalent Suggested Stud Girdle: Power Products 43100K, Howards Cams 90100, Jomar 1104 Head Bolt Torque with Oil: 70 ft./lbs. Rocker Stud Torque with Oil: 45 ft./lbs. Intake Bolt Torque with Oil: 35 ft./lbs. Manufacturer: Dart Machinery Manufacturer's Part Number: 11610020P Weight: 23 lbs. Warranty: Race Application, No warranty expressed or implied Quantity: Sold as Each
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