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Screamin' Eagle Milwaukee-Eight Extreme Ported Cylinder Heads

Parte | Número SKU: 16501332

This Center-Cooled generation of Extreme Ported Cylinder Heads has been meticulously designed to help optimize air/fuel flow and velocity. Building on the previous Oil/Twin-Cooled generation of CNC-Ported Milwaukee-Eight® Cylinder Heads, the Screamin' Eagle team refined the intake and exhaust ports based on extensive racing efforts to help maximize the flow of high-velocity air through 2mm larger (42mm intake/34mm exhaust) valves than the Original Equipment heads and fully machined the combustion chamber to help optimize combustion efficiency.

  • Due to the new race-inspired intake port geometry, these heads require the use of either Screamin' Eagle® High-Flow 68MM Intake Manifold (P/N 27300218) or Screamin' Eagle® Extreme Flow 68MM CNC Ported Intake Manifold (P/N 27300217)

  • Factory equipped with high-performance valve springs that remain stable with high-lift cams and in high-RPM operation

  • Screamin’ Eagle products are not available for sale and are not street legal in all countries. Please contact your local dealer for more information

Replacement cylinder heads for '23-later Center-Cooled Touring models or '25-later Softail models equipped with 135ci Stage IV kits or 135 Crate engines or 131ci Stage IV kits. '23-'24 Touring models require separate purchase of Double Stud Kit P/N 29900147.

Installation Instructions

Dealer Install Recommended:

Yes

ECM Calibration Required:

Yes

Sold In Units:

Pair

In the Box:

Front and Rear CNC Ported Heads

WARRANTY:

1 year limited warranty – Go to www.h-d.com/warranty for full details

Harley-Davidson® motorcycles modified with some Screamin’ Eagle® Performance products must not be used on public roads and, in some cases, may be restricted to closed-course competition. These performance parts are 49-state U.S. EPA compliant but are NOT compliant for sale or use in California on pollution-controlled motor vehicles. California guidelines on tampering can also lead to substantial fines and penalties. Screamin’ Eagle® Performance products are intended for the experienced rider only.