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
$579.95 – $629.95
Weight | N/A |
---|---|
Dimensions | N/A |
Option | 124", 128", 131" |
Option 2 | +.010 |
Option 3 | M8 |
Only logged in customers who have purchased this product may leave a review.
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.
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.
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.
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.
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.
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.