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ProMAXX Cylinder Heads
ProMAXX Cylinder Heads_GM LS1/LS2_Shocker CNC _227cc_2.020/1.570_64 cc

PN: PMX-2012-000
  • 356-t6 Aluminum
  • 227cc Intake Runner
  • CNC Precision Machined
  • Straight Plug
  • 64cc Combustion Chamber
  • *Requires $200.00 Core Charge*
Assembled heads feature 21-4N, back cut swirl polished, 1 piece stainless steel valves more info
ProMAXX Cylinder Heads
ProMAXX Cylinder Heads_GM LS1/LS2_Shocker CNC_227cc_2.080/1.600_64 cc

PN: PMX-CLS-64S-2014
  • 356-t6 Aluminum
  • 227cc Intake Runner
  • CNC Precision Machined
  • Straight Plug
  • 64cc Combustion Chamber
  • *Requires 200.00 Core Charge*
Assembled heads feature 21-4N, back cut swirl polished, 1 piece stainless steel valves more info