Part Number:
CNC-LS4407

LS3 Rectangle Port Aluminum Cylinder Heads Bare 257cc (2 Heads)

Intake Runner 257cc, Combustion Chamber 73cc, Angle Plug, 2.165 Intake 1.590 Exhaust Valves, Bare Casting Head, Rectangle Port, 11 Degree

$988.95
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⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
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CNC Motorsports high flowing “As-Cast” LS3 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: 73cc
  • Intake Port Volume: 257cc
  • Exhaust Port Volume: 101cc
  • Intake Valve Diameter: 2.165"
  • Exhaust Valve Diameter: 1.590"
  • Intake Port Location: Stock
  • Intake Port Shape: Rectangle
  • Exhaust Port Location: Stock
  • Exhaust Port Shape: Round
  • Valve Job: Street Performance 3-Angle
  • Valve Stem Diameter: 8mm
  • Valve Cover Bolt Pattern: Center
  • Cylinder Head Angle: 11 Degree
  • More Information
    CNC Part Number CNC-LS4407
    Price $988.95
    Sold As Single
    Manufacturer's Part Number LS4407
    Brands CNC-Motorsports
    Part Types Cylinder Head
    Departments Parts
    Vehicle Make Chevy LS
    Combustion Chamber Size 73cc
    Cylinder Head Material Aluminum
    Cylinder Head Style Bare Casting
    Exhaust Valve Size 1.590
    Intake Runner Size 225cc
    Intake Valve Size 2.165
    Plug Style Angle Plug
    Custom Notices ⚠ PROP 65 WARNING
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