Description
Upgrade your Harley-Davidson Evolution engine with the Revolution Performance Big Bore Piston Kit. Designed as a replacement kit for Bolt-On Big Bore Kits, this piston kit increases displacement to 85 cubic inches with a 3-9/16" bore size and a 4-1/4" stroke length. The domed piston head delivers a compression ratio of 10.3:1, providing enhanced performance and power. Engineered for a precise fit, this kit is compatible with a wide range of Harley-Davidson Evolution models, including FXSTB Night Train, FLHRCI Road King Classic, FLTRI Road Glide, and more. Each kit is manufactured to high standards to ensure durability and reliable operation.
Features:
- Replacement piston kit for Bolt-On Big Bore Kit
- Displacement: 85"
- Bore Size: 3-9/16"
- Compression Ratio: 10.3:1
- Stroke Length: 4-1/4"
- Piston Head Shape: Domed
Fitment Examples: FXSTB Night Train, FLHRCI Road King Classic, Electra Glide Ultra Classic FLHTCU, FXD Dyna Super Glide, FLSTF Fat Boy, and many more Evolution models.
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