Engine Kits & Rotating Assemblies

S&S Cycle 84-99 BT w/ Stock Heads 3-5/8in Bore Cylinder Set - Natural

Part Number: SSY-91-7000

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 96in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH96 Engines - Natural

Part Number: SSY-91-7207

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 96in Sidewinder Big Bore Stroker Kit - Wrinkle Black

Part Number: SSY-91-7661

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/ Super Stock Heads 89in 3-1/2in Bore Cylinder and Piston Kit

Part Number: SSY-91-7715

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

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

Part Number: SSY-91-9017

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 66-84 BT 98in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH98 Engines - Gloss Black

Part Number: SSY-91-9201

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 66-84 BT 96in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH96 Engines - Gloss Black

Part Number: SSY-91-9401

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 96in Sidewinder Big Bore Stroker Kit - Natural

Part Number: SSY-91-7660

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 89in 3 1/2in Bore Cylinder & Piston Kit - Wblack

Part Number: SSY-91-7711

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 79-84 BT 88in Sidewinder 3-5/8in Big Bore Cylinder Kit - Gloss Black

Part Number: SSY-91-9001

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 66-84 BT 80in 3-1/2in Bore Cylinder and High Compression Piston Kit

Part Number: SSY-91-9023

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 Heads 3-1/2in Bore Cylinder & Piston Kit - Natural

Part Number: SSY-910-0179

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 99-06 BT 4-1/8in Bore Cylinder & Piston Kit - Silver

Part Number: SSY-910-0215

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 66-84 BT 3-31/32in Stroke 3-7/16in Bore 8.0 To 1 Compression Cylinder Kit - Gloss Black

Part Number: SSY-91-9013

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 Models 4.250in Bore 550C Cam w/ Chrome Pushrods Power Pack - Black w/ Highlight

Part Number: SSY-310-1050C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 124in CI Oil Cooled Power Pack w/ Chrome Pushrod Tubes

Part Number: SSY-310-1052C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 4.250in Bore 550C Cam w/ Chrome Pushrods Power Pack - Wrinkle Black w/ Highlight

Part Number: SSY-310-1101C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 Models 128in Power Pack w/ Chrome Pushrod Tubes - Wrinkle Blk w/ Highlight

Part Number: SSY-310-1103C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 128in CI Oil Cooled Power Pack w/ Chrome Pushrod Tubes w/ Highlight - Wrinkle Blk

Part Number: SSY-310-1104C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017 M8 Models 128in Oil Cooled Power Pack w/ Chrome Pushrod Tubes w/o Highlight

Part Number: SSY-310-1105C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017 M8 Models 128in CI Oil Cooled w/ Chrome Pushrod Tubes & Highlighted Fins

Part Number: SSY-310-1106C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 4.250in Bore 550G Cam w/ Chrome Pushrods Power Pack - Black Granite w/ Highlight

Part Number: SSY-310-1108C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 Models 128in Power Pack w/ Chrome Pushrod Tubes - Granite Blk w/ Highlight

Part Number: SSY-310-1109C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 128in CI Oil Cooled Power Pack w/ Chrome Pushrod Tubes w/ Highlight Black Granite

Part Number: SSY-310-1110C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

2017+ M8 129in Power Pack w/ Black Pushrod Tubes & Cam Chain Tensioners - Blk w/ Highlight

Part Number: SSY-310-1225C

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order