Dart 19474030M Cylinder Head Aluminum Big Block Chevy Pro1 335cc 2.300″ x 1.880″, Marine CNC Bare Casting

Dart 19474030M Cylinder Head Aluminum Big Block Chevy Pro1 335cc 2.300″ x 1.880″, Marine CNC Bare Casting

Material: RMR Cast Aluminum Alloy

Valve Angle: 24°

Intake Port Volume: 335cc

Intake Valve: 2.300”

Exhaust Valve: 1.880”

Chamber Volume: 121cc

Intake Port Shape: Rectangle

Exhaust Port Location: .300” raised

Dart Marine PRO1 cylinder Head

Features an exclusive chromate surface finish to inhibit corrosion and extend the life of the head.

Fitted with Inconel exhaust valves to withstand the extended running time and temperatures typical of marine usage.

Maximum performance, bracket racing, Head up and super classes. Over 7,500 RPM, 500+ cubic inches, great head for maximum effort comp or bracket cars.

Dart PRO1 24° 335cc CNC Head are professional quality competition cylinder Head. We applied the airflow technology developed in our championship winning Pro Stock engine program to produce these state of the art Head.

Every intake port, exhaust runner, valve bowl, and every combustion chamber is 100% CNC machined in 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.

Heads are sold individually.