DART 19775196 Pro1 Chevrolet Big Block Head – 451.00 CC Port, 97.00 CC Chamber

Maximum competition, high torque, high compression low dome. 8000+ RPM, 500+ cubic inches. Dart developed the first successful aftermarket aluminum heads for the big block Chevy engine platform and we’ve done it again! We have continued to refine our revolutionary designs through our in house research and development program and now offer the latest of our advancements in the PRO1 20 Deg 440cc Aluminum cylinder heads. The Dart PRO1 20 Deg heads deliver superior performance, by utilizing 440cc runners in a raised asymmetrical port design, and feature a 20 Deg rolled valve angle with redesigned shallow combustion chambers. These heads are ideal for maximum effort naturally aspirated, big boost forced induction, or nitrous applications.
Designed to use conventional BBC intake manifolds; Requires use of shaft mounted rockers; Requires use of shaft mounted rockers; Requires special pistons; HIP (Hot Isostatic Pressed) Casting; Solid heads available by special order; MUST use Copper seats with Titanium Valves; Heads are sold individually

• Industry: Automotive
• CNC Ported: Yes
• Combustion Chamber Volume: 97.00 CC
• Exhaust Valve Diameter: 1.800 IN
• Intake Valve Diameter: 2.400 IN
• Material: RMR Cast Aluminum Alloy
• Port Volume: 451.00 CC
• Valve Angle: 20 DD
• Valve Spring Diameter: 1.625 IN
• Valve Spring Maximum Lift: 0.850 IN
• Engine Type: ICE
• Product Type: Engine Cylinder Head
• Make - Web: Chevrolet
• Engine - Web: Big Block
• Emissions Code: 3