High-compression pistons 4.310" bore.

• 4.31" Bore x 4.5" Stroke

• Forged flat-top pistons

• Piston design and rings engineered to withstand increased combustion forces for outstanding durability

• Updated ring package with 1mm compression and scraper rings

• Gas-ported to assist with ring sealing while allowing for low-tension and reduced friction

• Screamin’ Eagle® products are not available for sale and are not street legal in all countries. Please contact your local dealer for more information