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CP Pistons

CP Pistons M8 120 10.75:1

$466.46

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CP Pistons M8 120 10.75:1 piston set for Harley-Davidson M8 engines.

Key Features

  • Fits a wide range of Harley-Davidson M8 models from 2017-2021.
  • Designed for a 10.75:1 compression ratio for improved performance.
  • Bore size is 4.125 inches.
  • Stroke is 4.500 inches.
  • Displacement is 120 cubic inches.
  • Dome height is 1.080 inches.
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About this part

Product Details

If you're looking to get more out of your Harley-Davidson M8 engine, a piston upgrade can make a big difference. These CP Pistons are designed for a 10.75:1 compression ratio, which is a notable bump over stock and can help you achieve improved performance. They're built for the 120 cubic inch displacement with a 4.500 inch stroke and a 4.125 inch bore size.

CP Pistons are well-built and known for their strength. This set features a dome volume of -4.0 cubic inches and a dome height of 1.080 inches, contributing to that higher compression. They fit a wide range of Harley-Davidson models from 2017 through 2021, including popular bikes like the Road King, Street Glide, and Fat Boy 114. This is a solid option if you're rebuilding your top end or looking for a performance boost.

Specifications

Brand
CP Pistons
Manufacturer Part #
BHM8120

Frequently Asked Questions

CP Pistons M8 120 10.75:1

$466.46