s s 129 big bore kit for harley milwaukee eight Fits:18-23 Softail with 107" engine FMVSS 116 DOT 5

FMVSS 116 DOT 5

Contributes to an increase in torque and horsepower for improved performance

Dyno-Tuned Map Library

Stock replacement 40 micron bronze fuel filter element

The 540 requires adjustable pushrods and new valve springs to accommodate higher lift

s s 129 big bore kit for harley milwaukee eight Fits:18-23 Softail with 107" engine FMVSS 116 DOT 5S&S 107" to 129" Big Bore Piston & Cylinder Kit for Harley Davidson Milwaukee Eight S&S has been building big bore kits for Harleys since the 1960s and has it down to an absolute science. Their latest efforts are aimed at the Milwaukee Eight platform (2017 and newer HD big twins) and open up a whole new level of performance for these bikes. This kit converts the 107" engine to a tire melting 129" which is the largest possible 4. 320" bore bolt in big