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Availability: In Stock

S&S CYCLE Big Bore Piston Kit

(6 reviews)
SKU: 7fa8ea4f4e4d81

$579.95$629.95

99.5% Positive feedback
  • Consistently receives highest buyers ratings
  • Ships items quickly
  • Has earned a track record of excellent service

Description

  • Piston kit includes set of pistons, rings, wristpins, and clip
  • Compression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&S

Additional information

Weight N/A
Dimensions N/A
Option

124", 128", 131"

Option 2

+.010

Option 3

M8

6 reviews for S&S CYCLE Big Bore Piston Kit

  1. Cameron

    I’m an expert on Harley performance and was joyful installing the Big Bore Piston Kit on my bike. The kit includes everything needed to boost displacement and compression on my V-Twin, and installation went smoothly thanks to clear instructions and great customer service. Now that it’s installed I’m thrilled with the extra torque and power throughout the rev range.

  2. Eddie

    After installing the S&S Big Bore Piston Kit on my bike I was thrilled with the performance gains – more power throughout the RPM range, great throttle response, and an awesome deeper exhaust tone. Highly recommended for riders looking to increase displacement and compression on their V-twin.

  3. Otis

    For my needs as an enthusiastic yet casual V-twin engine builder, the Big Bore Piston Kit was perfect, delivering noticeable performance boosts through quality parts and straightforward installation despite my amateur skills.

  4. Rusty

    The S&S big bore piston kit is a high-quality, easy to install kit that noticeably increased my Evolution engine’s power and performance, I’d definitely recommend it for anyone looking to rebuild their Evo motor with more displacement.

  5. Gene

    The Big Bore Piston Kit provides good value for the price but I have concerns about the quality control and long-term durability. With improvements to the wristpin and ring fit this could be an excellent kit but as it stands I would recommend exercising caution when purchasing.

  6. Gerry

    After installing the S&S 128-inch big bore piston kit in my Harley, the bike feels like a whole new animal with way more power and torque, this kit is top notch quality and really wakes up any large v-twin.

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