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PROMAXX Performance Parts and Accessories
Cylinder Heads, Aluminum, Assembled, 121cc Chamber, 340cc Intake Runner, Chevy, Big Block, Pair
Part Number: PMX-9342
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CYLINDER HEADS PAIR
Part Number: PMX-9342T
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
BARE CYLINDER HEAD PAIR
Part Number: PMX-9351
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, 171, Hydraulic Flat Tappet, 63cc Chambers, 5-Angle Valve Job, 2.02 in./1.60 in. 1-Pc. SS Valves, 0.575 in. Lift, Mopar Sm. Block, Pair
Part Number: PMX-9360
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CYLINDER HEAD PAIR
Part Number: PMX-92002ASR
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
HEAD WITH ANGLE PLUG
Part Number: PMX-9200A
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Project X, Aluminum, Assembled, 56cc Chamber, 210cc Intake Runner, Ford, Small Block, Pair
Part Number: PMX-9208T
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Performance Freedom Series, Bare, Aluminum, Natural, 64cc Chamber, Chevy, Small Block, Pair
Part Number: PMX-2112
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Freedom Series, Assembled, Aluminum, Natural, 64cc Chamber, Chevy, Small Block, Pair
Part Number: PMX-2117
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Freedom Series Small Block Chevy, Assembled, Aluminum, 64cc Chamber, 225cc Intake Runner, Angle Plugs, Chevy, Small Block, Pair
Part Number: PMX-2120
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
INTAKE VALVE
Part Number: PMX-7103
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
MODULAR FORD SOHC 600
Part Number: PMX-4516
Not Yet Reviewed
Estimated Ship Date: Apr 10, 2026 if ordered today
Estimated Ship Date: Apr 10, 2026 if ordered today
SINGLE VALVE
Part Number: PMX-7115
Not Yet Reviewed
Estimated Ship Date: Apr 9, 2026 if ordered today
Estimated Ship Date: Apr 9, 2026 if ordered today
Cylinder Heads, Aluminum, Assembled, 63cc Chamber, 171cc Intake Runner, Chrysler, Dodge, Plymouth, Small Block, Pair
Part Number: PMX-9362
Not Yet Reviewed
Estimated Ship Date: May 5, 2026 if ordered today
Estimated Ship Date: May 5, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Cylinder Heads, Series One, Aluminum, Bare, 64cc Chamber, 225cc Intake Runner, Chevy, Small Block, Pair
Part Number: PMX-2100
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
SBC 220cc As Cast 2.08/1.60/64cc Angle Plug Bare
Part Number: PMX-2104
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CYLINDER HEADS
Part Number: PMX-2122HR
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Freedom Series Small Block Chevy Heads, Assembled, Aluminum, 72cc Chamber, 225cc Intake, Straight Plug, Chevrolet, Small Block, Pair
Part Number: PMX-2123
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CYLINDER HEADS
Part Number: PMX-2168HR
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
SBC 190cc Blended Angle Pug Bare
Part Number: PMX-2176S
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CYLINDER HEADS PAIR
Part Number: PMX-2013
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
CYLINDER HEAD PAIR
Part Number: PMX-2029
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Shocker Series, Solid Roller, Assembled, Aluminum, 210cc Intake Runner, Ford, Small Block, Pair
Part Number: PMX-9213
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair
Part Number: PMX-92198S
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 215cc Intake Runner, Chevrolet, Small Block, Pair
Part Number: PMX-9219TA
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
