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S&S Cycle 910-0837 M8 128in. Big Bore Cylinder Set 4.250 Bore Wrinkle Black Non-Highlighted Fins

Manufacturer

Picture for manufacturer S&S Cycle

Part Number

910-0837
8 reviews
Sale Price

$463.95

Estimated ship date Wednesday, December 09

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Product Details

The S&S Cycle 910-0837 is a Big Bore Cylinder Set designed for Milwaukee-Eight (M8) engine platforms, featuring a 4.250-inch bore in a wrinkle black powder coat finish with non-highlighted fins. This bolt-on cylinder set delivers a significant displacement increase — from 107 cubic inches to 124 ci (with a 4.375" stroke), or from 114/117 CVO to 128 ci (with a 4.5" stroke) — without requiring case boring or splitting.

Key Features:

  • 4.250" bore — the largest bore achievable without engine case machining
  • Wrinkle black finish with non-highlighted fins for a clean, aggressive look
  • Forged pistons included for superior strength and durability
  • 10.5:1 compression ratio optimized for pump gas compatibility
  • Stock cylinder length maintained — no changes to engine height
  • Aluminum castings with cast iron cylinder liners
  • Cylinders bored slightly under nominal size for proper final honing clearance
  • Sold as a pair
  • Made in the U.S.A.

S&S Cycle big bore cylinder sets are engineered to bolt directly onto existing M8 engine cases with no special machining required, making them an ideal performance upgrade for riders looking to maximize displacement and torque output. The Drag Specialties distributor part number for this set is 0931-0837.

The price on the replacement lids was low enough to handle the shipping charge to provide a fair total price. Thx

Product showed up in great condition and relatively fast.

Had what I needed

As described, very happy!

We purchased jackstands actually for our camper because we could not get them from anywhere else due to the fact that they did not deliver anywhere in Kentucky. It was great to see that, boatplicity.com had them. We did not have any problem with our order or with receiving them. I was actually surprised that we received those so quickly after the order was placed. They are exactly what we wanted, needed and expected them to be. Thanks

My order was shipped and received in a timely manner. The part I ordered was an exact match to the part I was replacing.

Thank you !

Excellent service

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