Drag Specialties DS-750739 Piston Kit – Harley-Davidson Evolution 1340 (1984–2000)
Standard Bore | Cast Aluminum | Top-End Rebuild for EVO Models

Description:

Bring your EVO back to life with the Drag Specialties DS-750739 piston kit, designed for standard bore 1340cc Evolution engines. Manufactured from high-quality cast aluminum and built to OEM specs, this piston kit delivers excellent performance, long-lasting durability, and smooth engine operation.

Perfect for stock rebuilds, the DS-750739 includes both pistons, wrist pins, and clips—ready for your next top-end job. Compatible with OEM or Hastings rings (sold separately).

Kit Features:

• OEM-quality cast aluminum alloy construction

• Some fitments feature friction-reducing coatings for cooler running and extended piston life

• Compatible with OEM or Hastings piston rings

• Includes: 2 pistons, 2 wrist pins, 4 clips

• Ideal for stock replacement, rebuilds, or engine refreshes

Technical Specs:

• Bore Size: 3.498" (Standard)

• Compression Ratio: 8.5:1

• Stroke Length: 4-1/4"

• Material: Cast Aluminum

• Units: Kit (for both cylinders)

• Weight: 2.63 lbs

Fitment – Harley-Davidson Models w/ Evolution 1340 Engine (1984–2000):

• FXR / FXRT / FXRS / FXRC / FXRD / FXDWG / FXLR / FXEF / FXSB

• FLHT / FLHTC / FLHTCU / FLTC / FLTCU / FLHR / FLHS / FLTR

• FXST / FXSTC / FXSTS / FXSTB / FLST / FLSTC / FLSTF / FLSTN / FLSTS

• FXDS-CONV / FXD / FXDB / FXDC

• Softail, Dyna, Electra Glide, Road King, Tour Glide, and Heritage models equipped with 1340cc Evolution engines