Welcome to Powerglides

"there's a lot of torque about our horsepower"

We specialise in Harley-Davidson Performance Upgrades, Harley-Davidson Engine Building
and Harley-Davidson Dyno Tuning, including any necessary machining required, and the supply of the relevant parts.

Our Harley dedicated machine shop features an extensive range of fixturing, designed and built here, that allows us to easily carry out these essential processes.

Our "state of the art" Superflow dyno facility and our use of Direct Link Flash Tuner engine management software enables us to accurately tune the EFI models utilising the stock ECM without the addition of any piggy back connections or additional tuning devices.

We also offer servicing, transmission rebuilds, and diagnostic checks to help keep you on the road.

Powerglides modified CVO 110

Powerglides modified CVO 110

All of our recommended packages for Twin Cams and Evolution Big Twins are based around Head Quarters parts for excellent driveability at low speed in heavy traffic and blistering performance when needed. Our engine builds and tuning are renowned for both streetable performance and longevity.

The science, the maths, the R&D and the testing has been done. Please read through our menus, especially the Harley-Davidson technical articles, and let 35 years of machine shop experience, 30 years of Harley ownership, and 20 years in this business be your guide and Powerglides, your Harley-Davidson specialist.

Low compression 113 Supercharged Twin Cam engine installed in a 2007 CVO Ultra

Low compression 113" Supercharged Twin Cam engine installed in a 2007 CVO Ultra. Engine build and Direct Link Flash Tuner dyno tune was done here. 143hp in an Electraglide is an interesting experience!

Powerglides tuned XR1200 at Brands Hatch

Powerglides tuned XR1200 at Brands Hatch

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Powerglides - In The Press