Cylinder Heads

2017+ M8 Models 132in/136in Big Bore Cylinder Kit (Blk w/o Highlighted Fin) - 4.320in Bore

Part Number: SSY-910-1009A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 132in/136in Big Bore Cylinder Kit (Blk Granite w/ Fins) - 4.320in Bore

Part Number: SSY-910-1010A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

99-05 BT .585in RW Conical Steel/w/o Compression Release Head Kit - Silver

Part Number: SSY-900-0409

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 4.320in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0846A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 4.320in Bore 4.625in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Part Number: SSY-910-0848

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

HEAD KIT EVO BT NAT

Part Number: SSY-106-3466

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

HEAD KIT EVO BT BLK

Part Number: SSY-106-4570

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017 M8 Touring 4.250in Bore x 4.375in Stroke 107 To 124 Big Bore Kit

Part Number: SSY-910-0625A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 4.250in Bore 4.375in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0681A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 4.250in Bore x 4.5in Stroke 114 To 128 Big Bore Kit

Part Number: SSY-910-0684A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 4.250in Bore 4.500in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0685A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 4.2520in Bore x 4.5in Stroke 117 to 128 Big Bore Kit

Part Number: SSY-910-0733A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Part Number: SSY-910-0762A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight

Part Number: SSY-910-0763A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 129in Big-Bore Kit 4.375in Stroke Highlighted Cylinders

Part Number: SSY-910-0843A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

2017+ M8 Models 129in Big-Bore Kit 4.375in Stroke Non-Highlighted Cylinders

Part Number: SSY-910-0844A

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

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

Part Number: SSY-106-6064

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

84-99 BT 88in 3 5/8in Big Bore Cylinder & Intermediate Compression Piston Kit - Wblack

Part Number: SSY-91-7552

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

07-16 BT 124in Low Compression 4-1/8in Big Bore Kit - Silver

Part Number: SSY-910-0327

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

07-16 BT 124in Standard Compression 4-1/8in Big Bore Kit - Silver

Part Number: SSY-910-0341

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

Cylinder Head, Factory Mast, 58cc Combustion Chamber, Bare, 1.928 in. Intake Valve, 1.556 in. Exhaust Valve, Chevy, LT, Pair

Part Number: MML-CHLTX310501

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

• Free Shipping
• Special Order

Cylinder Head, Factory Mast, 60cc Combustion Chamber, Bare, 2.126 in. Intake Valve, 1.590 in. Exhaust Valve, Chevy, LT, Pair

Part Number: MML-CHLTX310512

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

• Free Shipping
• Special Order

Cylinder Head, Black Label, 60cc Combustion Chamber, Bare, 2.165 in. Intake Valve, 1.600 in. Exhaust Valve, Chevy, LT1, Each

Part Number: MML-CHLTX600197

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

• Free Shipping
• Special Order

Cylinder Head, Black Label, 60cc Combustion Chamber, Bare, 2.165 in. Intake Valve, 1.600 in. Exhaust Valve, Chevy, LT1, Each

Part Number: MML-CHLTX600198

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

• Free Shipping
• Special Order

Cylinder Head, Black Label, 70cc Combustion Chamber, Bare, 2.250 in. Intake Valve, 1.600 in. Exhaust Valve, Chevy, LT1, Each

Part Number: MML-CHLTX600199

Not Yet Reviewed

Estimated Ship Date: Jan 30, 2026 if ordered today

• Free Shipping
• Special Order