DART 11421111P Pro1 Chevrolet Small Block Head – 200.00 CC Port, 72.00 CC Chamber

Street performance, restricted oval track, and marine performance upgrade. Mid-range to 6,500 RPM. Best for 383-434 cubic inch engines. Dart PRO1 23 Deg 200cc Platinum series heads offer increased air flow at high valve lift for large displacement engines. Long wearing Bronze valve guides, screw-in studs, multi-angle intake seats with hardened, radiused exhaust seats are standard. Best of all, our precision cast ports produce outstanding airflow without time consuming porting. Assemblies include Stainless Steel valves, premium springs, locks, retainers, studs, guide plates and seals.
Heads are sold individually

• Industry: Automotive
• CNC Ported: Yes
• Combustion Chamber Volume: 72.00 CC
• Exhaust Valve Diameter: 1.600 IN
• Intake Valve Diameter: 2.020 IN
• Material: RMR Cast Aluminum Alloy
• Port Volume: 200.00 CC
• Valve Angle: 23 DD
• Valve Spring Diameter: 1.250 IN
• Valve Spring Maximum Lift: 0.510 IN
• Engine Type: ICE
• Product Type: Engine Cylinder Head
• Make - Web: Chevrolet
• Engine - Web: Small Block
• Emissions Code: 3