S&S Cycle 3 7/16 in. Bore Cylinder Kits 91-9017

Name: S&S Cycle 3 7/16 in. Bore Cylinder Kits
Brand: S&S Cycle
SKU: SSY-91-9017
Price: 1995.95 USD
Availability: OutOfStock
Rating: 0 (0 reviews)

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Part Number: SSY-91-9017

$1,995.95

S&S Cycle 3 7/16 in. Bore Cylinder Kits

S&S Cycle 66-84 3-7/16in x Up To 4-3/4in Stroke Cylinder Kit - Gloss Black
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S&S Cycle 3 7/16 in. Bore Cylinder Kits 91-9017

SSY-91-9017

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Part Number: SSY-91-9017

Estimated Ship Date: Dec 16, 2026

$1,995.95

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Overview

Applications

Q&A

Estimated Ship Date: Dec 16, 2026 Would you rather pick it up?

Overview

Brand:

S&S Cycle

Manufacturer's Part Number:

91-9017

Part Type:

Powersports Top End Engine Kits

Product Line:

S&S Cycle 3 7/16 in. Bore Cylinder Kits

Summit Racing Part Number:

SSY-91-9017

Cylinder Included:

Yes

Pistons Included:

Yes

Piston Material:

Forged aluminum

Piston Rings Included:

Yes

Wrist Pin Included:

Yes

Wrist Pin Bearing Included:

Head Gaskets Included:

Yes

Base Gaskets Included:

Yes

Cam Chain Tensioner Gaskets Included:

Exhaust Gaskets Included:

Valve Cover Gaskets Included:

Quantity:

Sold as a kit.

Notes:

Kit features gloss black cylinders with a 3 7/16 in. bore and can be used with a 4 1/2 in., 4 5/8 in., and 4 3/4 in. stroke crankshaft.

S&S Cycle 3 7/16 in. Bore Cylinder Kits

The S&S Cycle 3 7/16 in. bore cylinder kits provide a significant increase in engine displacement, resulting in more power and torque, especially noticeable in the low and mid-range powerband, making for a more potent and responsive riding experience, particularly for cruising and pulling heavy loads. The larger bore allows for more air and fuel to be drawn into the cylinders, leading to a substantial power increase. With more power, the motorcycle will accelerate quicker and more forcefully. This is especially beneficial for riders who frequently ride in stop-and-go traffic or need extra pulling power for towing. A larger bore can be combined with other performance upgrades like high-lift cams, larger carburetors, and upgraded exhaust systems to further enhance power gains. Proper tuning is essential after installing a big bore kit to ensure optimal performance and avoid potential issues. Before ordering, make sure this cylinder kit is compatible with your specific Harley® model/year.

Applications