Starting life as a west coast piston foundry way back in 1912, Jahns Engineering, or rather simply J.E. Pistons - have long been synonymous with quality and power. The company has continually refined their production methodology as new means and methods become available. Today, their pistons for Twin Cam and Milwaukee Eight engines are made from forged aluminum that’s finished on CNC machines for the ultimate in consistency that’ll please even the most demanding of engine builders.




Every J.E. piston kit comes with properly sized piston rings, wrist pins and pin locks right out of the box. You’ll notice each piston has precisely-machined oil control ports and piston ring groves in all the right spots on its smoothly-finished surface. They’re actually a real treat to behold. On inspection, you’ll see that these pistons are ready-made for everything from standard replacement applications all the way up to full-on race engine builds, and everything in between!




Available for Harley-Davidson Twin Cam and Milwaukee Eight motorcycles; get the the power by calling TJ on 888.575.6570 ext. 817 or email forums@partsgiant.com and be sure to mention you saw this post on HDF and he’ll get you sorted out, fast!