6.4L MAXXFORCE 7 Ford Power Stroke Fly Cut and De-Lipped Piston Kit With Rings
Product Code: RCD-1740610002, RCD-1740610022, RCD-1740610032, 

The 6.4L had issues from the factory with the stock pistons cracking. The Maxx Force 7 Pistons were designed for the International engine which are engineered to fix the issues that Ford had with the stock 6.4L pistons. These pistons have .080" deep valve reliefs cut into the piston to accept our stage 3 & 4 camshafts.