PROMAXX Performance Engines & Components

Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9217S

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Estimated Ship Date: Dec 28, 2026 if ordered today

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CYLINDER HEADS PAIR

Part Number: PMX-9197S

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Estimated Ship Date: Dec 28, 2026 if ordered today

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225 SBC 208/160 64CC STR.PLUG

Part Number: PMX-2121HR

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Estimated Ship Date: Dec 28, 2026 if ordered today

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SBC 190 CC 64CC CHAMBER 5 ANGLE VALVE JOB FULLY ASSEMBLED HYD ROLLER

Part Number: PMX-2181HR

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Cylinder Heads, Series One, Assembled, Aluminum, 175cc Intake Runner, Ford, Small Block Windsor, Pair

Part Number: PMX-1102

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Cylinder Heads, 64cc, Assembled, Hydraulic Roller, Rect. Intake, Sq. Exhaust, 2.020/1.600 in. Valves, 0.6 in. Max Lift, Aluminum, Natural, Chevy, Pair

Part Number: PMX-2169HR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2026 if ordered today

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Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 190 cc Intake Runner, Straight Plug, Chevy, Pair

Part Number: PMX-2181

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 29, 2026 if ordered today

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Cylinder Heads, Maxx Series, Assembled, Aluminum, 183cc Intake Runner, D-port, Chevy, 302, 327, 350, 400, Pair

Part Number: PMX-9183

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Dec 29, 2026 if ordered today

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CYLINDER HEADS PAIR

Part Number: PMX-91832

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Estimated Ship Date: Dec 28, 2026 if ordered today

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CYLINDER HEADS PAIR

Part Number: PMX-2151HR

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Cylinder Heads, Project X, Aluminum, Bare, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9215S

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

Part Number: PMX-9195A

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Estimated Ship Date: Dec 28, 2026 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

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 28, 2026 if ordered today

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SBC CNC Blended 190cc 2.02/1.60/64cc Straight Plug Bare

Part Number: PMX-2177

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Estimated Ship Date: Dec 28, 2026 if ordered today

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600LIFT SPG KIT

Part Number: PMX-4570

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Estimated Ship Date: Dec 28, 2026 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: Dec 28, 2026 if ordered today

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Valve Springs, Gold Series, Dual, 1.290 in. O.D., Titanium Retainers, 7 degree Locks, Valve Seals, Kit

Part Number: PMX-8401

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Estimated Ship Date: Dec 28, 2026 if ordered today

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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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VALVE SPRING

Part Number: PMX-8454

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

Part Number: PMX-9243

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Cylinder Head, Shocker CNC, Bare, 65cc Chamber, 185cc Intake Runner, Aluminum, Mopar, Small Block LA, Pair

Part Number: PMX-95615

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Estimated Ship Date: Dec 28, 2026 if ordered today

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CYLINDER HEAD

Part Number: PMX-9601

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Estimated Ship Date: Dec 28, 2026 if ordered today

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SHOCKER SBM CYLINDER HEADS PR

Part Number: PMX-9561

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Cylinder Head, Shocker CNC, Assembled, 63cc Chamber, 185cc Intake Runner, 2.08/1.60 Valve Sizes, Flat Tappet, Aluminum, Mopar, Small Block LA, Pair

Part Number: PMX-9560

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Shocker 200 Ford FE solid roller springs 76 cc combustion camber 2.02/1.76 valves

Part Number: PMX-92336SR

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Estimated Ship Date: Dec 28, 2026 if ordered today

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