Harley-Davidson’s Screamin’ Eagles factory customs department has unleashed its biggest engine yet, the 131-cube (2147cc) crate motor. The Screamin’ Eagle Milwaukee Eight 131 Crate Engine features the ...

A little while back, Harley Davidson introduced us to a genuinely humungous piece of machinery; the Screamin’ Eagle 131 engine. This ruthless monstrosity was initially intended to serve as an ...

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 ...

Do you know that saying "there’s no replacement for displacement?" It applies to all types of internal combustion engines, fitted on both cars or motorcycles, and has been the driving force behind ...

Do you feel that your Harley with the Milwaukee-Eight engine in it is just too underpowered? Do you need more grunt to really be cruising along at the speeds you want to be? Harley has a new engine ...

This engine powers the wildest Harley-Davidson touring bike ever made.

It's big bike season here at the resident Jalopnik bike nerd's house, because Harley-Davidson dropped off this gorgeous Performance Orange Street Glide Special with a big-bore crate engine swap from ...