Engines & Components

Big Bore Kit, 107 in., Drop-In, 3.937 in. Bore, Wrinkle Black Cylinders with Highlighted Fins, Harley-Davidson®, Kit

Part Number: SSY-910-0500

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• $10 Summit Bucks
• Special Order

Top End Engine Kit, 97 in. Big Bore, Black Wrinkle Finish, Forged Pistons, Gaskets, Harley-Davidson®, Kit

Part Number: SSY-910-0205

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

HYDRAULIC LIFTER UPDATE KIT

Part Number: SSY-33-5451

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S 98 BIG BORE KIT BLK

Part Number: SSY-910-0481

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping
• $10 Summit Bucks

Camshafts, Easy Start, Gear Drive, 240 Intake/255 Exhaust, 0.570 Intake, /0.570 in. Exhaust, Harley-Davidson®

Part Number: SSY-106-5243

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

• Drop Ship
• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 86-19 Sportster Models 883 to 1200cc Conversion Kit - Wrinkle Black

Part Number: SSY-910-0687

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

• Drop Ship
• Free Shipping
• $10 Summit Bucks
• Special Order

ENGINE VALVE TRAIN, 66-84 BIGTWIN, HYDRAULIC LIFTER UPDATE KIT

Part Number: SSY-33-5452

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

128" BIG BORE KIT M8 BLK

Part Number: SSY-910-0733

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 99-06 BT 4-1/8in Bore Cylinder Kit For Early Production S&S T117 Engines - Silver

Part Number: SSY-910-0218

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2007+ BT 4.425in Bore Cylinder Set - Stone Gray

Part Number: SSY-910-0562

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S 635GE CAMSHAFT KIT

Part Number: SSY-330-0339

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

PS160 96 Tooth Cam Drive Gear

Part Number: SSY-33-4282

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2006 BT Dyna Easy Start w/ Inner Gears 675GE Gear Drive Camshaft Kit

Part Number: SSY-106-5741

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

Camshafts, Easy Start, Gear Drive, 240 Intake/255 Exhaust, 0.570 Intake, /0.570 in. Exhaust, Harley-Davidson®

Part Number: SSY-106-5221

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 84-99 Performance Replacement Low Compression 76cc Cylinder Heads - Natural

Part Number: SSY-106-6059

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

107" BIG BORE KIT SIL

Part Number: SSY-910-0480

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

86-03 XL 3-13/16in Stroke 3.500in Bore Cylinder Kit

Part Number: SSY-910-0694

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

84-99 BT 96in 3 5/8in Big Bore Cylinder & Intermediate Compression Piston Kit - Natural

Part Number: SSY-91-7054

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cylinder 84-99 BT w/Super Stock Cylinder Heads 80in 3 1/2in Bore Cylinder & Piston Kit - WBlack

Part Number: SSY-91-7713

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 86-21 Sportster Models 1250cc Conversion Kit - Wrinkle Black

Part Number: SSY-910-0691

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 86-21 Sportster Models High Compression 1250cc Conversion Kit - Wrinkle Black

Part Number: SSY-910-0692

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 84-99 BT w/ Stock Cylinder Heads 3-1/2in Bore Cylinder & Piston Kit - Wrinkle Black

Part Number: SSY-910-0182

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 99-16 BT Replacement 3-7/8in Bore Cylinder & Piston Kit For S&S 106in Stroker Kit - Silver

Part Number: SSY-910-0199

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 99-16 BT Replacement 3-7/8in Bore Cylinder & Piston Kit For S&S 106in Stroker Kit - Wblack

Part Number: SSY-910-0203

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

1999+ BT 4.425in Bore Cylinder Set - Wrinkle Black

Part Number: SSY-910-0565

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order