Pro Flow LS1 CNC Ported Cathedral Port Aluminum Cylinder Heads (2 heads) Bare

CNC Motorsports Pro Flow CNC Ported LS cathedral port cylinder heads are made out of high quality AC4B aluminum alloy and feature a street performance 3-angle valve job, bronze valve guides and ductile iron valve seats. This is an excellent out of the box performance cylinder head that doesn't break the bank.<

• Material: Aluminum AC4B
• Combustion Chamber Size: 65cc
• Intake Port Volume: 230cc
• Exhaust Port Volume: 78cc
• Intake Valve Diameter: 2.000"
• Exhaust Valve Diameter: 1.600"
• Intake Port Location: Stock
• Intake Port Shape: Cathedral
• Exhaust Port Location: Stock
• Exhaust Port Shape: Round
• Valve Job: Street Performance 3-Angle
• Valve Stem Diameter: 8mm
• Rocker Stud Diameter: 8mm
• Valve Cover Bolt Pattern: Center
  
   Flow numbers - Exhaust with out pipe
• .100 Intake 72cfm   / Exhaust 50cfm
• .200 Intake 163cfm / Exhaust 113cfm
• .300 Intake 217cfm / Exhaust 164cfm
• .400 Intake 273cfm / Exhaust 199cfm
• .500 Intake 296cfm / Exhaust 221cfm
• .600 Intake 311cfm / Exhaust 229cfm
• .700 Intake 313cfm / Exhaust 233cfm