Dart 11511122PF Cylinder Head Aluminum Small Block Chevy Pro1 215cc 49cc 2.050″ x 1.600″ Angled Plug, Assembly w/ 1.437″ Dual Springs for Hydraulic Roller or Flat Tappet Lifters

Dart 11511122PF Cylinder Head Aluminum Small Block Chevy Pro1 215cc 49cc 2.050″ x 1.600″ Angled Plug, Assembly w/ 1.437″ Dual Springs for Hydraulic Roller or Flat Tappet Lifters

Material: RMR Cast Aluminum Alloy

Valve Angle: 23° (stock)

Intake Port Volume: 215cc

Intake Valve: 2.050”

Exhaust Valve: 1.600”

Springs: 1.437″ Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam Max Lift: .650″

Chamber Volume: 49cc

Plug Types: Angled

Serious street performance, modified oval track and bracket racing. Mid-range to 7,000 RPM. Best for 400+ cubic inch engines.

Dart PRO1 23° 215cc Platinum series Head are for big cubic inch, high RPM applications which favor peak power over low end flexibility.

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.