Drag Specialties DS-750753 +0.030" Piston Kit – Harley-Davidson Sportster 1000 (1972–1985)
Overbore Rebuild Kit | OEM Fit | Cast Aluminum Pistons

Description:

Upgrade your Ironhead with the Drag Specialties DS-750753 Piston Kit, precision-machined for +0.030" overbore Harley-Davidson Sportster 1000 models. This kit is built for riders who want reliable performance without compromising on value.

Whether you're restoring a vintage XLH or refreshing an XR, this direct replacement piston kit is engineered to match OEM specs and includes everything needed for a solid top-end rebuild (except rings).

Kit Features:

• OEM-quality cast aluminum alloy construction

• Select fitments include coated pistons for cooler running and reduced friction

• Accepts OEM or Hastings rings (sold separately)

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

• Engineered for long-term durability and daily street performance

Technical Specs:

• Bore Size: 3.217"

• Bore Oversize: +0.030"

• Compression Ratio: 9.0:1

• Stroke Length: 3-13/16"

• Material: Cast Aluminum

• Units: Pair

• Weight: 2.38 lbs

Fitment – Harley-Davidson Sportster 1000 (Ironhead):

• XLH: 1972–1985

• XLCH: 1972–1979

• XLS Roadster: 1979–1985

• XLX: 1983–1985

• XR: 1983–1984

• XLT: 1977–1978

• XLCR Café Racer: 1977–1978

Note: This kit is for +0.030" overbore applications. Confirm cylinder specs before ordering.