Crate engines are a lifeline for street-performance two-wheelers and four-wheelers. When Harley-Davidson introduced the Screamin' Eagle 135ci Stage IV Performance Crate Engine in 2023, it wasn't just ...

If we were to choose between a custom made motorcycle (that means built from the ground up, with different parts made to fit together in previously untried ways) and an extreme conversion of an ...

The new mill bolts on to the original Touring chassis, so installation will be straightforward. It will feature a bevy of premium Screamin’ Eagle components as well. These include new 10.7:1, ...

Harley-Davidson recently announced the new Screamin’ Eagle products for your 2017 and later HD touring models. These High-flow exhaust kits, performance cams, Screaming Eagle engine and comprehensive ...

If you’ve ever wondered how Harley’s doing with their engines, sit down for a bit; we’ve got a press release celebrating that Harley’s just gone and set a new benchmark for performance – and not just ...

The Screamin’ Eagle 131 engine combines the 4.5-inch stroke of the Milwaukee-Eight 114 engine with new 4.31-inch bore cylinders. Milwaukee-Eight Extreme Ported four-valve cylinder heads are CNC-ported ...