Drag Specialties DS-750741 +0.010" Piston Kit – Harley-Davidson Evolution 1340 (1984–2000)
OEM Fit | Cast Aluminum | Top-End Overbore Rebuild Kit

Description:

Rebuild your Harley-Davidson Evolution engine with the Drag Specialties DS-750741 piston kit, engineered for +0.010" overbore cylinders. Perfect for Evo-powered Softail, FXR, Dyna, and Touring models, this kit restores lost power, compression, and reliability.

Built from cast aluminum and designed to OE specs, this kit includes two pistons, wrist pins, and clips. It accepts OEM or Hastings rings (sold separately) and is ideal for mild rebuilds or worn cylinder refreshes.

Kit Features:

• OEM-quality cast aluminum alloy construction

• Coated pistons on select fitments reduce friction and extend life

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

• Designed for +0.010" oversize bore

• Compatible with OEM or Hastings piston rings (not included)

Technical Specs:

• Bore Size: 3.508"

• Oversize: +0.010"

• Compression Ratio: 8.5:1

• Stroke Length: 4-1/4"

• Material: Cast Aluminum

• Units: Kit (both cylinders)

• Weight: 2.63 lbs

Fitment – Harley-Davidson Evolution 1340 (1984–2000):

• Touring: FLHT, FLHTC, FLHTCU, FLHR, FLHS, FLTC, FLTCU, FLTR

• Softail: FXST, FXSTC, FXSTB, FXSTS, FLST, FLSTC, FLSTF, FLSTN, FLSTS

• Dyna: FXD, FXDL, FXDWG, FXDS-CONV, FXDC, FXDB

• FXR Series: FXR, FXRS, FXRS-SP, FXRC, FXRD, FXRT, FXRS-CONV

• Special Models: FXR 2, FXR 3, FXR 4, Disc Glide FXRDG

Covers most 1340cc Evolution-equipped models from 1984 through 2000.