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Tuesday 4 January 2022

Feuling Parts

Feuling M-8 Rocker Shafts

These new rocker shafts from Oceanside, California based Feuling Parts are available for M-8 and Twin Cam engines, and designed "with strength in mind," says CEO Luke Leatherman.
"After having a rocker shaft failure when road racing our 2019 Harley-Davidson Road Glide at Laguna Seca, in 2020 we decided to source the best possible material and heat-treat process available to create the best rocker shaft on the market. 

"With over double the strength of the factory rocker shafts, and of any of our competitors' shafts, we precision-grind them from 4140HT steel - gas nitrated and final surface treated for greatest possible quality finish and durability.
"Custom tooling was created for M-8 engines to provide a countersink relief for the bolt/nut head verses, machining away the entire end of the shaft per the factory design."
Feuling recommends these shafts for all M-8 and Twin Cam engines and especially for engines running higher lift camshafts and heavier valve spring pressures.
Twin Cam Rocker Shafts are also available.