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2.8L (Gen 1) Specifications

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  • 2.8L (Gen 1) Specifications

    General Data: All dimensions are in millimeters

    Type

    60 degree V6

    Displacement

    2.8L

    RPO

    LL2

    Bore

    89.0

    Stroke

    76.0

    Deck Height

    224

    Compression Ratio

    8.9:1

    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

    88.992-89.070

    Out of Round

    0.02 (Maximum)

    Taper - Thrust Side

    0.02 (Maximum)

    Piston:

    Clearance

    0.017-0.043

    Piston Ring:

    COMPRESSION

    Groove Clearance

    Top

    0.030-0.070

    Second

    0.040-0.095

    Gap

    Top

    0.25-0.50

    Second

    0.25-0.50

    OIL

    Groove Clearance

    0.199 (Maximum)

    Gap

    0.27-1.25

    Piston Pin:

    Diameter

    22.9937-23.0015

    Clearance

    0.0065-0.0091

    Fit in Rod

    0.0187-0.0515 (Press)

    Crankshaft:

    Main

    Journal

    Diameter - 3 Dots

    67.241-67.249

    Diameter - 2 Dots

    67.249-67.257

    Diameter - 1 Dot

    67.257-67.265

    Taper

    0.005 (Maximum)

    Out Of Round

    0.005 (Maximum)

    Main Bearing Clearance

    0.032-0.069

    Crankshaft End Play

    0.06-0.21

    Crankpin

    Diameter - 2 Dots

    50.758-50.771

    Diameter - 1 Dot

    50.771-50.784

    Taper

    0.005 (Maximum)

    Out of Round

    0.005 (Maximum)

    Rod Bearing Clearance

    0.028-0.083

    Rod Side Clearance

    0.36-0.60

    Camshaft:

    Lift

    Intake

    6.65

    Exhaust

    6.94

    Journal Diameter

    47.44-47.49

    Journal Clearance

    0.026-0.101

    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 degrease

    Seat Angle (Intake & Exhaust)

    46 degrease

    Seat Runout (Intake & Exhaust)

    0.05

    Seat Width

    Intake

    1.25-1.50

    Exhaust

    1.60-1.90

    Stem Clearance

    0.026-0.068

    Valve Spring

    Free Length

    48.5

    Pressure

    N @ mm

    Closed

    391 @ 40

    Open

    867 @30

    Installed Height

    40

    Valve Spring

    Damper

    Free Length

    *47.2

    Approx # of Coils

    4

    Fastener Tightening Specifications

    Item

    Nm

    Ft Lbs

    Air Injection Tube

    34

    25

    Air Injection Tube Nut

    25

    18

    Camshaft Sprocket Bolts

    23

    17

    Connecting Rod Bolt Nuts

    53

    39

    Coolant Outlet Bolts

    21

    15

    Coolant Pump Bolts (M6 x 10)

    10

    7

    Coolant Pump Bolts (M8 x 125)

    24

    18

    Coolant Pump Nut

    10

    7

    Cylinder Head Bolts (In Sequence)

    95

    70

    *Manifold Side*

    6 2 3 7

    5 1 4 8

    * Outer Side *

    *

    *

    EGR Valve

    25

    18

    Exhaust Manifold Bolts

    34

    25

    Front Cover Bolts *

    *** -10mm Bolt (4)

    50

    37

    *** -8mm Bolt (6)

    30

    22

    Flywheel Bolts

    70

    52

    Intake Manifold Bolts (In Sequence)

    21

    15

    H D A E I

    < Front

    G C B F J

    *

    Main Bearing Cap Bolts

    95

    70

    Oil Filter Adapter

    85

    63

    Oil Pump Bolt

    41

    30

    Oil Pan Bolts (Rear Two)

    25

    18

    Oil Pan Bolts, Studs and Nuts

    10

    7

    Oil Pan Drain Plug

    25

    18

    Oil Pump Cover Screws

    9

    7

    Rocker Arm Cover Bolts

    8

    6

    Rocker Arm Studs

    65

    48

    Spark Plugs

    30

    22

    Timing Chain Damper

    21

    15

    Tortional Damper Bolt

    95

    70

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