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3.1L (GEN 1) Engine Specifications

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  • 3.1L (GEN 1) Engine Specifications

    3.1L (Gen I) Engine Specifications

    General Data:
    All dimensions are in millimeters

    Type
    60 degree V6
    Displacement
    3.1L
    RPO
    LH0
    Bore
    89.0
    Stroke
    84.0
    Deck Height
    224
    Compression Ratio
    8.8:1
    Firing Order
    1-2-3-4-5-6
    Oil Pressure
    69 kPa @500
    RPM; 205-380 kPa @ 2000 RPM

    (10 psi @ 500 RPM;
    30-55 psi @ 2000R RPM)

    Cylinder
    Bore:

    Diameter
    89.02-89.03
    Out of Round
    0.013 (Maximum)
    Taper - Thrust
    Side

    0.013 (Maximum) Maximum Deck Warpage
    0.13
    Piston:
    Clearance
    0.023-0.056
    Piston Ring:
    COMPRESSION

    Groove Clearance

    Top
    0.051-0.089
    Second
    0.051-0.089
    Gap
    Top
    0.25-0.51
    Second
    0.51-0.071
    OIL
    Groove Clearance
    0.20(Maximum)
    Gap
    0.25-0.76
    Piston Pin:
    Diameter

    22.992-22.997

    Clearance
    0.010-0.020
    Fit in Rod
    0.018-0.046
    Crankshaft:
    Main

    Journal
    Diameter
    67.241-67.267
    Taper
    0.005 (Maximum)
    Out Of Round
    0.005 (Maximum)
    Main Bearing
    Clearance

    0.028-0.094
    Crankshaft End
    Play

    0.05-0.2

    Crankpin

    Diameter
    50.757-50.784
    Taper
    0.005 (Maximum)
    Out of Round
    0.005 (Maximum)
    Rod Bearing
    Clearance

    0.028-0.094
    Rod Side
    Clearance

    0.18-0.44
    Camshaft:
    Lift
    Intake
    6.68
    Exhaust
    6.93
    Journal Diameter
    Journals 1 & 4
    47.45-47.80
    Journal Clearance
    0.03-0.10
    Valve System:
    Lifter
    Hydraulic
    Rocker Arm Ratio
    1.50:1
    Valve
    Lash

    Intake

    1-1/2 Turns Down from Zero Lash

    Exhaust
    Face Angle
    (Intake & Exhaust)

    45 degrees Seat Angle (Intake & Exhaust)
    46 degrees Margin Exhaust
    1.55-1.85 Intake
    170-2.01 Runout
    0.25
    Stem Clearance
    0.2-.0.8
    Valve
    Spring

    Free Length
    48.5
    Pressure

    Kg @ mm
    Closed
    41 @ 43.2
    Open
    98 @ 32.8
    Installed Height
    39.9
    Valve
    Spring

    Damper
    Free Length
    48.5
    Approx # of Coils
    4
    Fastener Tightening Specifications

    Item
    Nm
    Ft Lbs Camshaft Sprocket Bolt 24 18 Connecting Rod Cap Nut 50 37 Crankshaft Damper Bolt 78 58 Cylinder Head Bolt (In Sequence) (apply thread sealant to
    bolts)
    First Pass 55 41 Final Pass Add 90 degrees
    *Manifold Side*
    6 2 3 7
    5 1 4 8

    * Outer Side * Exhaust Manifold Bolt 24 18 Flexplate/Flywheel Bolt 83 61 Front Timing Cover Case Bolt 8mm 27 20 10mm 38 28
    Lower Intake Manifold (In Sequence)
    First Pass 20 15 Final Pass 30 22 Upper Intake Manifod Bolt 25 18 Main Bearing Cap Bolt First Pass 50 37 Final Pass Add 77 degrees Oil Filter Adapter 68 50 Oil Pan Rear Bolts 25 18 Oil Pan Bolt and Nut (Except Rear 2) 10 8 Oil Pump Bolt 41 30 Rocker Arm Stud 46 35 Belt Tensioner 33 24 Throttle Body Bolts 25 18 Timing Chain Damper Bolt 25 18 Water Pump Pulley Bolt 24 18 Water Pump 24 18 Large 47 35 Medium 21 15 Small 10 8 Exhaust Heat Shield Nut 9 8 Valve Cover Bolt 8 7
    -Brad-
    89 Mustang : Future 60V6 Power
    sigpic
    Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog
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