Cylinder Heads

Cylinder Head, Jailbird 390cc, Solid Roller, CNC Machined, Aluminum, Bowl Blended, Assembled, 0.900 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-390-5059BB

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Head, Jailbird 390cc, Solid Roller, CNC Machined, Aluminum, Assembled, 0.950 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-390-5060

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Estimated Ship Date: Jan 14, 2026 if ordered today

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Cylinder Head, Jailbird 390cc, Solid Roller, CNC Machined, Aluminum, Bowl Blended, Assembled, 0.950 in. Lift, Chevrolet, Big Block Mark IV, Each

Part Number: FLK-390-5060BB

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Estimated Ship Date: Jan 14, 2026 if ordered today

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12 V Hamilton War head. (loaded)

Part Number: HML-07-H-003S

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Estimated Ship Date: Nov 14, 2025 if ordered today

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12 V Hamilton War head. Assembaled Dual Springs 1.950/1.850 (Loaded)

Part Number: HML-07-H-003W

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Estimated Ship Date: Nov 14, 2025 if ordered today

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24 Valve Cummins Hamilton Cams War Head w/ 103 valve springs and tool steel retainers 264 CFM

Part Number: HML-07-H-008

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Stage 3 12v head loaded, CNC ported. 165Lb springs, 1.85"/1.75", Tool steel retainers and valve stem seals

Part Number: HML-07-H001STG3

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Stage 1 Head 12 Valve Loaded with 165 springs, valves, tool steel retainers and valve stem seals 1.750" intake/1.750"

Part Number: HML-07H001STG1

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Cylinder Head, Assm. Pro1 CNC, SBF, 210/62cc, 2.05/1.60, 1.437-Dual, 355T6, Each

Part Number: DRT-13071122

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Assembled, 62cc Chamber, 210cc Intake Runner, Ford, 289, 302, 351W, Each

Part Number: DRT-13071123

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Assembled, 62cc Chamber, 225cc Intake Runner, Ford, 289, 302, 351W, Each

Part Number: DRT-13072143

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1 CNC, Assembled, Aluminum, 23 Degree, 66cc, 2.080 in. Intake, 1.600 in. Exhaust, Dual Springs, Chevy, Small Block, Each

Part Number: DRT-11971142P

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Assembled, 64cc Chamber, 227cc Intake Runner, Chevy, 327, 350, 400, Each

Part Number: DRT-11971143P

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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SBC CYLINDER HEADS - EA.

Part Number: DRT-11981163P

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Bare, 18 Degree, 66cc Chamber, 245cc Intake Runner, Chevrolet, Small Block, Each

Part Number: DRT-11992010

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Bare, 18 Degree, 66cc Chamber, 245cc Intake Runner, Chevrolet, Small Block, Each

Part Number: DRT-11992030

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Estimated Ship Date: Dec 29, 2025 if ordered today

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CYLINDER HEAD PRO 1

Part Number: DRT-11992113

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Estimated Ship Date: Dec 29, 2025 if ordered today

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CYLINDER HEAD PRO 1

Part Number: DRT-11992133

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Assembled, 121cc Chamber, 335cc Intake Runner, Chevy, Big Block, Each

Part Number: DRT-19474136

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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BBC CNC Pro1 335cc-2.300x1.880x1.625D w/hrd coat

Part Number: DRT-19474136M

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Assmbled, 121cc Chamber, 335cc Intake Runner, Chevy, Big Block, Each

Part Number: DRT-19474139

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Bare, 121cc Chamber, 355cc Intake Runner, Chevy, Big Block, Each

Part Number: DRT-19574030

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Estimated Ship Date: Dec 29, 2025 if ordered today

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BIG BLOCK CHEVY CYLINDER HEAD

Part Number: DRT-19574030M

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Pro1 CNC Big Block Chevy 355 Marine Cylinder Head

Part Number: DRT-19574136M

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Cylinder Head, Pro 1, Aluminum, Assmbled, 121cc Chamber, 355cc Intake Runner, Chevy, Big Block, Each

Part Number: DRT-19574139

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Estimated Ship Date: Dec 29, 2025 if ordered today

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