Product Description
S&S 114/117" to 128" Power Package for Harley Davidson Milwaukee Eight
The S&S Power Package is the ideal combination of performance and savings, designed to transform your 114" or 117" Harley M8 to the ultimate power machine without breaking the bank. For the latest generation HD’s, S&S is packaging their brand new 128" bolt in big bore kit with a 550 cam, cam plate and high flow oil pump as well as valve springs, lifters and pushrods.
All kits are available with gear or chain drive cams and are designed to make big, reliable power with equally big savings.
Features:
- Big Bore bolt-on kit increases your 114/117” M8 with stock 4.5” stroke to 128” with no case machining required
- Wrinkle black or black granite finish
- Available with or without fin highlighting in wrinkle black
- 4.250" bore
- Forged pistons
- 11.1:1 compression ratio
- All necessary gaskets, bearings and hardware for bolt-on installation included
- For oil cooled or oil & water cooled models
- Requires S&S extra strong head bolt kit or similar which is the only part that must be purchased separately
Oil Pump/Cam Plate:
- Precision machined from billet aluminum
- Passage plugs removable for servicing
- Independent scavenge sections for flywheel cavity & cam chest
- Debris screens in both scavenge pickups
- Magnet in cam chest to help to stop debris from entering oil pump
- Increased flow capacity on both feed & scavenge side
- Pressure relief valve is adjustable with unit installed in engine
Pushrods:
- Quickee pushrods with chrome covers
Tappets:
- S&S Precision tappets
Tappet Cuffs:
- Hard anodized black coating
- Billet aluminum construction
- Stronger than stock material eliminates distortion
- Improve tappet stability in high lift & high rpm situations
Cam:
- S&S 550 cam - designed for big bore applications
- Available in both gear drive & chain drive variations
- Gear drive kits provide improved cam timing accuracy & eliminate stock chain tensioner
- Gear drive kits include outer drive gears
Valve Springs:
- Work well with cams up to .605 lift
- High Performance conical single wire spring
- Includes top collars, keepers, & valve seals/bottom collars
Instruction manuals:
- 510-0467 Chain Drive Cams M8.pdf
- 510-0481 4-25 bore for m8.pdf
- 510-0282 Pushrod Covers.pdf
- 510-0559 Valve Springs M8 20170810.pdf
- 510-0582 Cam Support Plate for M8.pdf
- 510-0575 Tappet Cuffs For M8.pdf
- 510-0597 Oil Pumps for M8.pdf
Variant: 17-23 M8 Oil Cooled - Chain Drive Cam - Wrinkle Black / Highlighted Fins
SKU: B962-09040093
Variant: 17-23 M8 Oil Cooled - Chain Drive Cam - Wrinkle Black / Non-Highlighted Fins
SKU: B962-09040086
Variant: 17-23 M8 Oil Cooled - Chain Drive Cam - Black Granite / Highlighted Fins
SKU: B962-09040095
MPN: 310-1109B
DPN: 09040095
Variant: 17-23 M8 Oil Cooled - Gear Drive Cam - Wrinkle Black / Highlighted Fins
SKU: B962-09040068
Variant: 17-23 M8 Oil Cooled - Gear Drive Cam - Wrinkle Black / Non-Highlighted Fins
SKU: B962-09040070
MPN: 310-1106A
DPN: 09040070
Variant: 17-23 M8 Oil Cooled - Gear Drive Cam - Black Granite / Highlighted Fins
SKU: B962-09040074
Variant: 17-23 M8 Oil & Water Cooled (Twin Cooled) - Chain Drive Cam - Black Granite / Highlighted Fins
SKU: B962-09040094
MPN: 310-1107B
DPN: 09040094
Variant: 17-23 M8 Oil & Water Cooled (Twin Cooled) - Gear Drive Cam - Wrinkle Black / Highlighted Fins
SKU: B962-09040092
Shipping and Delivery Times
All orders are shipped from our warehouse in Falkenberg, Sweden. We work hard to get them moving quickly!
Stock status explained:
- In stock: Ready to ship to you within the time listed. Packages usually arrive 2–4 business days after dispatch depending on your location.
- Sold Out: Currently out of stock at Customhoj, but we expect to have it back soon! Please feel free to contact us for information on when the product will be available again.
If a product has multiple variants (like sizes or colors), the stock status updates automatically as you select your option.
Our goal is simple, to get your order to you as fast as possible!
30-Day Hassle-Free Returns - No Questions Asked
If you are not entirely satisfied with your order, whether you need to change sizes or something else, we offer a full 30-day return policy from the day you receive your order. Return shipping costs apply.
Please note that the right to return does not apply to products that are personalized, or manufactured upon order. See our return policy for complete details and conditions.
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