PROMAXX Performance Cylinder Heads

Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 185 cc Intake Runner, Straight Plug, Chevy SB, Pair

Part Number: PMX-2169

4.23 out of 5 stars ( 30 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

Cylinder Heads, Aluminum, 180cc Intake Runner, 60cc Chamber, Ford, Small Block, Pair

Part Number: PMX-9175

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

Cylinder Heads, Maxx Series, Hydraulic Roller, Assembled, Aluminum, 200cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9200HR

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

Cylinder Head, Freedom, Aluminum, Assembled, 72 cc Chamber, 185 cc Intake Runner, Straight Plug, Chevy, Pair

Part Number: PMX-2171

4.3 out of 5 stars ( 10 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 225 cc Intake Runner, Straight Plug, Chevy, Pair

Part Number: PMX-2121

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

Cylinder Heads, Maxx Series, Assembled, Aluminum, 64cc Chamber, Rectangular Port, Chevy, Small Block, Pair

Part Number: PMX-9200

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

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

Part Number: PMX-9207

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Jul 17, 2025 if ordered today

• Free Shipping
• Special Order

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

Part Number: PMX-9197A

Not Yet Reviewed

Estimated Ship Date: Jul 14, 2025 if ordered today

• Free Shipping
• Special Order

Cylinder Heads, Assembled, Aluminum, 64cc Chamber, 185cc Intake, Angle Plug, Hyd, Flat, Chevy, SBC, Pair

Part Number: PMX-2168

3.56 out of 5 stars ( 9 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

Cylinder Heads, Assembled, Cast Iron, 64cc Chamber, 185cc Intake Runner, Straight Plug, Chevy, Small Block, Pair

Part Number: PMX-2151

2.62 out of 5 stars ( 13 )

Estimated Ship Date: Jul 28, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Heads, Assembled, Aluminum, Ford, Pair

Part Number: PMX-9192

Not Yet Reviewed

Estimated Ship Date: Jul 28, 2025 if ordered today

• Free Shipping
• Special Order

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

Part Number: PMX-9198A

Not Yet Reviewed

Estimated Ship Date: Jul 15, 2025 if ordered today

• Free Shipping
• Special Order

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: Jul 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Jul 28, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Jul 28, 2025 if ordered today

• Free Shipping
• Special Order

CYLINDER HEADS PAIR

Part Number: PMX-2151HR

Not Yet Reviewed

Estimated Ship Date: Jul 15, 2025 if ordered today

• Free Shipping
• Special Order

Cylinder Heads, Maxx Series, Assembled, Aluminum, 210cc Intake Runner, Chrysler, Big Block, Pair

Part Number: PMX-9440

3.0 out of 5 stars ( 6 )

Estimated Ship Date: Jul 30, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Part Number: PMX-9217S

Not Yet Reviewed

Estimated Ship Date: Jul 7, 2025 if ordered today

• Free Shipping

Cylinder Heads, Freedom, Aluminum, Assembled, 72 cc Chamber, 225 cc Intake Runner, Straight Plug, Chevy, Pair

Part Number: PMX-2119

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

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

Part Number: PMX-9218S

Not Yet Reviewed

Estimated Ship Date: Jul 31, 2025 if ordered today

• Free Shipping
• Special Order

Cylinder Head, Maxx Series, 200cc Intake Runner, Aluminum, Assembled, 72cc Chamber, Pair

Part Number: PMX-92002AHR

Not Yet Reviewed

Estimated Ship Date: Jul 15, 2025 if ordered today

• Free Shipping
• Special Order

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

Part Number: PMX-9215A

Not Yet Reviewed

Estimated Ship Date: Jul 15, 2025 if ordered today

• Free Shipping
• Special Order

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

Part Number: PMX-9206

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

• Free Shipping

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

Part Number: PMX-9186S

Not Yet Reviewed

Estimated Ship Date: Jul 28, 2025 if ordered today

• Free Shipping
• Special Order

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

Part Number: PMX-9205

Not Yet Reviewed

Estimated Ship Date: Jul 15, 2025 if ordered today

• Free Shipping
• Special Order