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You are here: Home > Cylinder Heads > ProMAXX Cylinder Heads > Shocker CNC Series


ProMAXX Shocker CNC Series is the top of the line performance cylinder head. It features professionally designed runners and chambers that are meticulously CNC ported. The all new ProMAXX ultra smooth Grade A 356-T6 aluminum casting is CNC machined to create the perfect platform for newly developed runner and chamber designs. This is combined with a 5 angle competition valve job, diamond honed bronze guides, large spring pockets and professional assembly, performed right here in the United States. Pro MAXX Shocker CNC Heads are proof that going fast doesnít have to break the bank.
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ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 200cc - Ford FE Series - 2.090/1.660 - 76 cc

P/N: PMX-FFE-72S-9231
  • 356-t6 Aluminum
  • 200cc Intake Runner
  • Hand bowl blended
  • 76cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 185cc - Ford Mod Motor 2V SOHC - Romeo PI Head - 1.780/1.450 - 46 cc

P/N: PMX-MOD-46A-1003R
  • 356-t6 Aluminum
  • Fits Romeo Block
  • 180cc Intake Runner
  • Hand bowl blended
  • 46cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 185cc - Ford Mod Motor 2V SOHC - Romeo PI Head - 1.780/1.450 - 46 cc

P/N: PMX-MOD-46A-1004R
  • 356-t6 Aluminum
  • Fits Romeo Block
  • 180cc Intake Runner
  • Hand bowl blended
  • 46cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 185cc - Ford Mod Motor 2V SOHC - Windsor PI Head - 1.840/1.450 - 46 cc

P/N: PMX-MOD-46A-1005W
  • 356-t6 Aluminum
  • Fits Windsor Block
  • 180cc Intake Runner
  • Hand bowl blended
  • 46cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 185cc - Ford Mod Motor 2V SOHC - Windsor PI Head - 1.840/1.450 - 46 cc

P/N: PMX-MOD-46A-1006W
  • Fits Windsor Block
  • 356-t6 Aluminum
  • 180cc Intake Runner
  • Hand bowl blended
  • 46cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 185cc - MOPAR Small Block - 2.020/1.600 - 63 cc

P/N: PMX-SBM-63S-9560
  • 356-t6 Aluminum
  • 185cc Intake Runner
  • Hand bowl blended
  • 63cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 185cc - MOPAR Small Block - 2.020/1.600 - 65 cc

P/N: PMX-SBM-63S-9561
  • 356-t6 Aluminum
  • 185cc Intake Runner
  • Hand bowl blended
  • 63cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 200cc - Ford FE Series - 2.090/1.660 - 72 cc

P/N: PMX-FFE-72S-9230
  • 356-t6 Aluminum
  • 200cc Intake Runner
  • Hand bowl blended
  • 72cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 200cc - Ford FE Series - 2.200/1.730 - 72 cc

P/N: PMX-FFE-72S-9233
  • 356-t6 Aluminum
  • 200cc Intake Runner
  • Hand bowl blended
  • 72cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads - Shocker CNC Series 200cc - Ford FE Series - 2.200/1.730 - 76 cc

P/N: PMX-FFE-72S-9234
  • 356-t6 Aluminum
  • 200cc Intake Runner
  • Hand bowl blended
  • 76cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 pc stainless steel valves.