Cylinder Heads

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

Part Number: SSY-910-0733A

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-910-0762A

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-910-0763A

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-910-0843A

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-910-0844A

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-106-6064

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-91-7552

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-910-0327

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Estimated Ship Date: Jan 6, 2026 if ordered today

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

Part Number: SSY-910-0341

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Estimated Ship Date: Jan 6, 2026 if ordered today

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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

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Estimated Ship Date: Jan 30, 2026 if ordered today

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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

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Estimated Ship Date: Jan 30, 2026 if ordered today

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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

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Estimated Ship Date: Jan 30, 2026 if ordered today

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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

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Estimated Ship Date: Jan 30, 2026 if ordered today

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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

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Estimated Ship Date: Jan 30, 2026 if ordered today

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

Part Number: MML-CHLTX600200

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Cylinder Head, Black Label, 60cc Combustion Chamber, Bare, 2.165 in. Intake Valve, 1.600 in. Exhaust Valve, Chevy, LT4, Each

Part Number: MML-CHLTX600201

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Cylinder Head, Black Label, 70cc Combustion Chamber, Bare, 2.250 in. Intake Valve, 1.600 in. Exhaust Valve, Chevy, LT4, Each

Part Number: MML-CHLTX600202

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Estimated Ship Date: Jan 30, 2026 if ordered today

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Cylinder Head, Big Block Chevy Sniper X, Aluminum, Bare, 119cc Chamber, 355cc Intake, Intake Port Is Raised 0.300 in. From Stock, Chevy, 7.4L, Each

Part Number: PFH-174-X-C35-02

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Cylinder Head, Big Block Chevy Sniper X, Aluminum, Bare, 119cc Chamber, 375cc Intake, Intake Port Is Raised 0.300 in. From Stock, Chevy, 7.4L, Each

Part Number: PFH-174-X-C37-02

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Estimated Ship Date: Jan 21, 2026 if ordered today

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BARE CYLINDER HEADS PAIR

Part Number: PMX-3340

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Estimated Ship Date: Jan 21, 2026 if ordered today

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CYLINDER HEADS

Part Number: PMX-3340VO

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Estimated Ship Date: Jan 21, 2026 if ordered today

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CYLINDER HEADS

Part Number: PMX-3345

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 185cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-91898S

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 185cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9189TS

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9198TA

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Estimated Ship Date: Jan 21, 2026 if ordered today

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