PROMAXX Performance Parts and Accessories

Cylinder Head, OE-Replacement, Assembled, Cast Iron, Natural, Chevy, GMC, V8, 6.5L, Diesel, Each

Part Number: PMX-CHE855N

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

• 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: Today

• Free Shipping

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

Part Number: PMX-9200HR

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Today

• Free Shipping

Cylinder Head, Stock Replacement, Assembled, Cast Iron, Natural, Dodge, 5.2L/5.9L, Magnum, Each

Part Number: PMX-CHR807N

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Today

• Free Shipping

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: Today

• 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: Today

• 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: Today

• Free Shipping

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: Today

• Free Shipping

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

Part Number: PMX-9215A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Valve Springs, Freedom Series, Single, 1.260 in. O.D., Steel Retainers, Locks, Valve Seals, Kit

Part Number: PMX-7070

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Cylinder Head, OE-Replacement Jeep Inline, Assembled, Cast Iron, Natural, Jeep, 4.0L, Each

Part Number: PMX-CHR640N

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• 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: Today

• Free Shipping

Cylinder Heads, OE-Replacement, Assembled, Cast Iron, Natural, Dodge, 5.9L, Diesel, Each

Part Number: PMX-CHR618N

3.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

• Freight Charge

Cylinder Heads, OE-Replacement, Bare, Cast Iron, Natural, Ford, 2.3L, 2.5L, Each

Part Number: PMX-FOR463NB

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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: May 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: May 19, 2026 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: May 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: May 19, 2026 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: May 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Heads, Maxx Series, Hydraulic Roller, Assembled, Aluminum, 183cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: PMX-9183HR

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Part Number: PMX-1102HF

4.0 out of 5 stars ( 1 )

Estimated Ship Date: May 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: May 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Heads, Freedom Series, Bare, Aluminum, Natural, 72cc Chamber, Angle Plug, Chevy, Small Block, Pair

Part Number: PMX-2110

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Part Number: PMX-2210

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping