S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight

Name: S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight
Brand: S&S Cycle
SKU: S0GE 910-0763
Price: 1559.95 USD
Availability: InStock

$1,559.95

SKU: S0GE 910-0763

In Stock

Ships by Jun 13

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

This kit increases Harley-Davidson Milwaukee-Eight (M8) engine displacement to 131 cubic inches. Designed for high-performance, it includes cylinders, pistons, rings, wrist pins, and circlips, featuring a wrinkle black finish. It works with the stock crankcase, retaining original engine serial numbers. For full 131" displacement, an S&S stroker flywheel is required. A 131" cam cover badge is included.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	S&S Cycle
Part Number	S0GE 910-0763

Videos

S&S Cycle Big Bore Kit for Milwaukee-Eight Overview

BIG HORSEPOWER Kit Breakdown by Moonshine Horsepower | 131, 135, 139, & 143 MONSTER Horsepower

S&S Big Bore Kits and Cylinder Heads for Harley Review at RevZilla.com

Why you should get a 131 Kit on your Harley-Davidson

How to Install a Big Bore Kit In a Milwaukee Eight Engine | Weekend Wrenching

Harley Davidson 107 M8 to S&S 136 Big Bore Stroker Kit

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy