PROMAXX Performance Engines & Components

Cylinder Heads, Aluminum, Assembled, 72cc Chamber, 200cc Intake Runner, Ford, FE, Pair

Part Number: PMX-9231

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Aluminum, Bare, 121cc Chamber, 340cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9340

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Shocker Series, Solid Roller, Assembled, Aluminum, 210cc Intake Runner, Ford, Small Block, Pair

Part Number: PMX-9212

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 84cc Chamber, 240cc Intake Runner, Chrysler, Dodge, Plymouth, Big Block, Pair

Part Number: PMX-9241

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2211

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 30, 2025 if ordered today

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Cylinder Heads, Shocker Series, Hydraulic Roller, Assembled, Aluminum, 210cc Intake Runner, Ford, Small Block, Pair

Part Number: PMX-9210

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Estimated Ship Date: Oct 27, 2025 if ordered today

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SBC 225 CC PRO DESIGNED FULL CNC PORT AND CHAMBER 2.08/1.60 72CC CHAMBER 5 ANGLE VALVE JOB FULLY ASSEMBLED WIT

Part Number: PMX-92272A

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Project X, Aluminum, Assembled, 56cc Chamber, 210cc Intake Runner, Ford, Small Block, Pair

Part Number: PMX-9208

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Cylinder Heads, Maxx Series, Hydraulic Flat Tappet, Assembled, Aluminum, 170cc Intake Runner, Ford, FE, Big Block, Pair

Part Number: PMX-9170

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 28, 2025 if ordered today

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Valve Springs, Xtreme, Dual, Standard Style, 1.290 in. O.D., Titanium Retainers, 7 degree Locks, Kit

Part Number: PMX-8501

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Aluminum, Bare, 119cc Chamber, 317cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-9317

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Estimated Ship Date: Oct 27, 2025 if ordered today

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CYLINDER HEADS PAIR

Part Number: PMX-2181HR

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Cylinder Heads, Freedom Series Small Block Chevy Heads, Assembled, Aluminum, 64cc Chamber, 225cc Intake, Angle Plug, Chevrolet, Small Block, Pair

Part Number: PMX-2116

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Freedom Series Small Block Chevy Heads, Assembled, Aluminum, 72cc Chamber, 225cc Intake, Angle Plug, Chevrolet, Small Block, Pair

Part Number: PMX-2122

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 64cc Chamber, 190cc Intake Runner, Angle Plug, Chevy, Small Block, Pair

Part Number: PMX-2180

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Freedom Series, Bare, Aluminum, Natural, 64cc Chamber, Angle Plug, Chevy, Small Block, Pair

Part Number: PMX-2108

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Maxx Series Small Block Ford Heads, Bare, Aluminum, 60cc Chamber, 175cc Intake, Ford, Small Block, Pair

Part Number: PMX-9176

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Estimated Ship Date: Oct 27, 2025 if ordered today

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SBC 220cc As Cast 2.08/1.60/64cc Angle Plug Bare

Part Number: PMX-2104

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Cylinder Heads, Series One, Aluminum, Bare, 64cc Chamber, 185cc Intake Runner, Chevy, Small Block, Pair

Part Number: PMX-2172

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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BBC 600 LIFT SPRING KIT

Part Number: PMX-7120

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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SBC 225 CC PRO DESIGNED FULL CNC PORT AND CHAMBER 2.08/1.60 72CC CHAMBER 5 ANGLE VALVE JOB FULLY ASSEMBLED WIT

Part Number: PMX-92282

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SBC 225 CC PRO DESIGNED FULL CNC PORT AND CHAMBER 2.08/1.60 64CC CHAMBER 5 ANGLE VALVE JOB FULLY ASSEMBLED WIT

Part Number: PMX-9225A

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225 SBC 208/160 64CC ANGLE PLU

Part Number: PMX-2120HR

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CYLINDER HEAD

Part Number: PMX-9191

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VALVE SPRING

Part Number: PMX-8454

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