Product Description
Knobtown Cycle proudly offers the S&S CYCLE POWER PK GR M8 BKG WTR. Your Kansas City motorcycle parts experts for over 40 years.
Key Features
- Big-bore bolt-on kit increases 114″/117″ with 4-1/2″ stroke M-Eight with no case machining required
- 4-1/4″ bore cylinders with 11:1 forged pistons
- S&S oil pump/cam plate with blue anodized finish
- Passage plugs are removable for servicing
- Independent scavenge sections for flywheel cavity and cam chest
- Debris screen in both scavenge pickups
- Magnet in cam chest to help prevent debris from entering the oil pump
- Increased oil flow capacity on both the oil feed and scavenge side
- Adjustable pressure relief valve can be adjusted with the unit installed in the engine
- Quickee pushrods with chrome pushrod tubes
- S&S premium tappets
- S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
- Improve tappet stability in high-lift, high-rpm situations
- S&S 550 cams designed for big bore applications
- S&S valve springs work with cams up to .605″ lift
- High-performance conical single-wire spring design
- All necessary gaskets, bearings, and hardware for bolt-on installation is included
- Made in the U.S.A.
Product Specifications
- Part Number: 09040072
- Brand: S&S CYCLE
- Weight: 46.20 lbs
Professional Installation Available
Buy online with ship-to-store for free installation at our Kansas City shop, or visit our showroom today!
Notes: DISCONTINUED ITEM
Part Locations
| Location |
Available |
| Wisconsin (WI) |
5 |
| New York (NY) |
0 |
| Texas (TX) |
0 |
| Nevada (NV) |
1 |
| North Carolina (NC) |
0 |
| National Total |
6 |
Stock levels last updated: January 27, 2026 11:58 AM
Professional Installation Available
Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
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