AFR1845




SKU: AFR1845

BRAND: Air Flow Research

260cc Mongoose Aluminium Cylinder Heads
69cc Combustion Chamber, 4-Bolt Suit GM LS Series LS3


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AFR's 260cc LS3 "Mongoose" heads feature 100% CNC ported intake, exhaust and chambers using our advanced engineering and flow techniques to produce the ultimate Rectangle Port head available today. Featuring A356 aluminium castings, titanium retainers and the highest quality components, throughout. They're designed for 4.000 or larger bore applications up to 454 CI, operating up to 7000 RPM

  • Basic Package Components
  • 100% CNC Ported Combustion Chambers
  • 100% CNC Ported Exhaust Ports
  • 100% CNC Ported Intake Ports
  • Competition 5-angle Valve Job
  • 8mm Bead Lock Intake Valve, 2.165" x 5.195" Overall Valve Length
  • 8mm Bead Lock Exhaust Valve, 1.600" x 5.200" Overall Valve Length
  • PAC Racing Spring 1.270" OD Hydraulic Roller Dual Valve Spring, 155 lbs. on seat, Max RPM 7000-7200
  • 7° Titanium Retainers
  • 7° Bead Lock Valve Keepers
  • Viton Valve Seals
  • Hardened Valve Spring O.D Locator
  • Ductile Iron Intake Valve Seats
  • Ductile Iron Exhaust Valve Seats
  • 8mm Bronze Valve Guides
  • Rocker Rail Stand

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