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S&S Cycle 80 in. Stock Bore Cylinder Kits
S&S Cycle 66-84 BT 80in 3-1/2in Bore Cylinder and High Compression Piston Kit
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Estimated Ship Date: Dec 17, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
91-9023
Part Type:
Product Line:
Summit Racing Part Number:
SSY-91-9023
Cylinder Included:
Yes
Pistons Included:
Yes
Piston Material:
Forged aluminum
Piston Rings Included:
Yes
Wrist Pin Included:
Yes
Wrist Pin Bearing Included:
No
Head Gaskets Included:
Yes
Base Gaskets Included:
Yes
Cam Chain Tensioner Gaskets Included:
No
Exhaust Gaskets Included:
No
Valve Cover Gaskets Included:
No
Quantity:
Sold as a kit.
Notes:
Kit features gloss black cylinders with a 3 1/2 in. bore and is for use with a 4 1/4 in. stroke crankshaft.
S&S Cycle 80 in. Stock Bore Cylinder Kits
The S&S Cycle 80 in. stock bore cylinder kits for a Harley-Davidson® offers the benefit of maintaining the original engine characteristics while providing a reliable and readily available replacement option. Unlike "big bore" kits which enlarge the cylinder diameter to increase engine displacement and horsepower, a stock bore kit simply replaces worn cylinders with new ones of the same size. These stock bore cylinder kits are ideal for situations where you need to rebuild the engine without significantly altering its power delivery or overall performance, while still achieving a quality repair. If your Harley® engine needs a rebuild due to wear and tear, the S&S Cycle 80 in. stock bore cylinder kits are a good choice to restore the engine to its original functionality. Select the S&S Cycle big bore kit specifically designed for your HD® model and year.
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Some parts are not legal for use in California or other states with similar laws / regulations
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