S&S Cycle 2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ Highlight
Why this price?
$1,643.95 is MSRP, the lowest price S&S Cycle lets us list it at. Additionally, Pro members get $131.52 back on this part.
$1,643.95 − $131.52 = $1,512.43
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to S&S Cycle, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with S&S Cycle, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
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S&S has been building big bore kits since the 60s and has it down to an absolute science. Their latest efforts are aimed at the Milwaukee Eight® platform (2017 and newer big twins) and open up a whole new level of performance for these engines. Combining a new design forged piston with their 4.25" cylinders to net a tire melting 131 cubic inches when paired with their 4.625" stroker crank. We build our big bore kits and cranks to much tighter tolerarances and with higher quality materials than the factory parts. This new piston/cylinder kit will be a solid platform for massive power.
- Must be used with our stroker flywheels to achieve 131" displacement (part #s ssc320-0605, ssc320-0620)
- Powder coat finish match factory finish, giving the bike a "sleeper" advantage
- Huge displacement increase means huge power increase
- .030" MLS (multi-layered steel) head gaskets
- Original engine serial numbers are retained
- Includes 131" Cam Cover Badge
- Works with stock crankcases
- Retains stock engine height