DART 19874189 Pro1 Chevrolet Big Block Head – 365.00 CC Port, 121.00 CC Chamber

Maximum performance, bracket racing, heads up and super classes. 7,500 RPM, 540+ cubic inches, great head for maximum effort, comp or bracket cars. The PRO1 24 Deg 365cc CNC is for uncompromising performance and racing applications which favor high RPM power over low end flexibility. Best for big cubic inch, high RPM use. Every intake port, exhaust runner, valve bowl, and every combustion chamber is 100% CNC machined on special dedicated PRO1 castings. Our 5-axis, computer controlled machining centers produce compound curves and complex shapes that no human could duplicate with a hand grinder. Assemblies include Stainless Steel valves, premium springs, locks, retainers, guide plates and seals. Assemblies include Stainless Steel valves, premium springs, locks, retainers, guide plates and seals.
Heads are sold individually

• Industry: Automotive
• CNC Ported: Yes
• Combustion Chamber Volume: 121.00 CC
• Exhaust Valve Diameter: 1.850 IN
• Intake Valve Diameter: 2.350 IN
• Material: RMR Cast Aluminum Alloy
• Port Volume: 365.00 CC
• Valve Angle: 24 DD
• Valve Spring Diameter: 1.650 IN
• Valve Spring Maximum Lift: 0.900 IN
• Engine Type: ICE
• Product Type: Engine Cylinder Head
• Make - Web: Chevrolet
• Engine - Web: Big Block
• Emissions Code: 3