Description
TECHNICAL DATA
Complete Head: Includes Valve guides, Valve Seats, Injector tubes, Valves, Springs, Seals, Caps, Keepers
Year: 2004-2007
Liter: 7.2
CID: 442
Cylinders: L 6
Bore/Stroke: 4.3307-4.3327″, 5.000″
Compression Ratio: 17.0:1
Firing Order: 1-5-3-6-2-4
Comments: Updated 3126B Engine With Acert, 3 Valve Head
Tune-Up Specifications:
Intake Valve Lash: .012-.018″ Cold
Exhaust Valve Lash: .022-.028″ Cold
Cylinder Head Specifications:
New Thickness/ Measured At: 6.2150-6.2270″ *
Minimum Thickness: 6.2050″
Warp Specifications: .006″
Injector Tip Protrusion: .050-.070″
Comments: * MEASURE WITH DEPTH MIKE THROUGH INJECTOR HOLE TO DECK SURFACE.
Valve Information:
Stem Diameter: Intake- .3147-.3153″ Exhaust- .3713-.3721″
Head Diameter: Intake- 1.570-1.580″Exhaust-1.688-1.698″
Angle: Intake- 29.5-30ºExhaust-44.75-45.25º
Margin: Intake- .074″ Minimum Exhaust-.063″Minimum
Recession: Intake- .043-.067″ V/RECExhaust-.043-.067″ V/REC
Valve Guide Information:
Guide Height: Intake-.886-.926″ Exhaust- .681-.721″
Guide OD: Intake- .3173-.3183″Exhaust- .3741-.3751″ Guide ID
Valve Seal Type: Intake- None Exhaust- None
Valve Seat Information:
Seat Angle: Intake- 30-30.5ºExhaust- 44.25-44.75º
Seat Outside Diameter: Intake- 1.6530-1.6540″Exhaust-1.8105-1.8115″
Seat Insert Bore Diameter: Intake- 1.6503-1.6513″ Exhaust-1.8078-1.8088″
Seat Insert Bore Depth: Intake- .392-.396″ Exhaust-.392-.396″


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