Piston with Pin for Harley-Davidson Overhead Valve Big Twins 74" (Low Compression)
Product Specs: For Harley-Davidson Overhead Valve Big Twins: 74 inch Shovelhead, Panhead, or Knucklehead 1941 & later 3-7/16" Bore Low Compression (Approx 7.5:1) High Quality Aluminum Alloy Replacement Pistons are made to Interchange Perfectly with Original Equipment, and use Stock Type Rings. Replaces HD-22141-74A