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Discontinued Product!

The S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee-Eight 2017-2026 has been discontinued and will not be returning.

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S&S Cycle

S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee-Eight 2017-2026

Name: S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee-Eight 2017-2026
Brand: S&S Cycle
SKU: 10281738
Price: 1599.95 USD
Availability: OutOfStock

Item: P1170269

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Turn your 107 cubic inch Milwaukee Eight into a 129 cubic inch monster. S&S Cycle has done it again with their bolt-on big bore kit featuring a 4.32” … Read More

$1,599^.⁹⁵

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Product Details

Product Description

Part Numbers

Fitment

Instructions

S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee Eight

Turn your 107 cubic inch Milwaukee Eight into a 129 cubic inch monster. S&S Cycle has done it again with their bolt-on big bore kit featuring a 4.32” bore and 11:1 compression ratio. This cylinder and piston kit will accommodate a high lift cam and keep your Harley-Davidson M8 happy on pump gas. No case mods, no engine removal; just a massive set of jugs, designed, tested, and manufactured here in the USA.

Features:

Huge bore increase means huge power increase
Works with stock crankcases (no machine work)
Powder coat finish matches factory finish
MLS (multi-layered steel) head gaskets
4.320" Bore
Retains stock engine height
Includes cubic inch cam cover badge
Made in USA

Product Style	RevZilla Item #	Store Sku	MFR. Product #	Availability
Product Style Non-Highlighted Fins	RevZilla Item #10281738	Store Sku	MFR. Product #910-0844	AvailabilityCloseout: This product is no longer available

Fitment Notes & Exceptions

This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only.

Fits models with 107" Milwaukee Eight engines only

This Product Fits

S&S Cycle 129" Big Bore Kit For Harley 107" Milwaukee-Eight 2017-2026 Instructions

Instructions.pdf