Dart 19100116 Cylinder Head Aluminum Big Block Chevy Pro1 310cc 2.250″ x 1.880″, Assembly w/ 1.625″ Dual Springs for Solid Roller Cam

Dart 19100116 Cylinder Head Aluminum Big Block Chevy Pro1 310cc 2.250″ x 1.880″, Assembly w/ 1.550″ Dual Springs for Solid Roller Cam

Material: RMR Cast Aluminum Alloy

Valve Angle: 24° 

Intake Port Volume: 310cc

Intake Valve: 2.250”/2.300”

Exhaust Valve: 1.880”

Springs: 1.625″ Dual Springs for Solid Roller Cam Max Lift: .850″

Chamber Volume: 121cc

Intake Port Shape: Rectangle

Exhaust Port Location: .300” raised

For street performance and mild bracket racing. Under 7,000 RPM, under 500 cubic inches. Excellent mid-range torque and power, good for heavier vehicles.

Inspired by Dart’s championship winning Pro Stock designs, the PRO1’s race proven features include rolled valve angles, improved spark plug location, extra long intake valves, raised exhaust ports, and fast burn chambers – yet the PRO1 310cc can be used with off the shelf pistons, valve train components, and intake manifolds.

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, guide plates and seals.

Heads are sold individually.