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NEW Genuine Harley 2023.5up GEN2 M8 Screamin Eagle Extreme Ported Heads 16501059

$1,400.00
$1,400.00
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Availability: Low stock: 1 left
SKU: 42331
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$1,400.00
$1,400.00
New - Genuine Harley Davidson


Harley Part # 16501059 NEW Genuine Harley 2023.5up GEN2 M8 Screamin Eagle Extreme Ported Heads

Color is CVO Granite Black

This part is interchangeable with PN 16501333

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



Fits: 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.



Fitment catalogs are auto generated and are for reference only. Please look closely at pictures and decide condition and fitment for yourself.