AFR 260cc Mongoose Aluminium Cylinder Heads (AFR1845)

AFR1845 - LS3 MONGOOSE 260cc HEADS

69cc Combustion Chamber, 4-Bolt Suit GM LS Series LS3

Part Number: AFR1845

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