Dart 11711143PF Cylinder Head Aluminum Small Block Chevy Pro1 230cc 49cc 2.080″ x 1.600″ Angle Plug, Assembly w/ 1.550″ Dual Springs for Roller Lifters (CLICK HERE/ MORE INFO)

Dart 11711143PF Cylinder Head Aluminum Small Block Chevy Pro1 230cc 49cc 2.080″ x 1.600″ Angle Plug, Assembly w/ 1.550″ Dual Springs for Roller Lifters

Material: RMR Cast Aluminum Alloy

Valve Angle: 23° (stock)

Intake Port Volume: 230cc

Intake Valve: 2.080”

Exhaust Valve: 1.600”

Springs: 1.550″ Dual Springs for Solid Roller Cam Max Lift: .700″

Chamber Volume: 49cc

Plug Types: Angled

Maximum performance/full competition, unlimited oval and super classes. 7,000+ RPM, 400+ cubic inch engines.

PRO1 23° 230cc Platinum series Head are intended for maximum effort competition engines with large displacements and very high RPM usage.

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.