3.4 Iron Head V6 Specs (Gen 1)

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Product Information
Specification

General Data: All dimensions are in millimeters

Type

60 degree V6

Displacement

3.4L

RPO

L32

Bore

92.0

Stroke

84.0

Deck Height

224

Compression Ratio

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

92.020-92.038

Out of Round

0.007 (Maximum)

Taper - Thrust Side

0.007 (Maximum)

Maximum Deck Warpage

0.10

Piston:

Clearance

0.028-0.061

Piston Ring:

COMPRESSION

Groove Clearance

Top

0.050-0.090

Second

0.050-0.090

Gap

Top

0.18-0.41

Second

0.48-0.074

OIL

Groove Clearance

0.20(Maximum)

Gap

0.25-0.76

Piston Pin:

Diameter

22.992-22.996

Clearance

0.012-0.022

Fit in Rod

0.017-0.046

Crankshaft:

Main

Journal

Diameter

67.239-67.257

Taper

0.005 (Maximum)

Out Of Round

0.005 (Maximum)

Main Bearing Clearance

0.032-0.077

Crankshaft End Play

0.05-0.2

Crankpin

Diameter

50.768-50.786

Taper

0.005 (Maximum)

Out of Round

0.005 (Maximum)

Rod Bearing Clearance

0.028-0.081

Rod Side Clearance

0.18-0.44

Camshaft:

Lift

Intake

6.67

Exhaust

6.94

Journal Diameter

 

Journals

47.44-47.52

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

0.3

Stem Clearance

0.2-.0.8

Valve Spring

Free Length

48.5

Pressure

Kg @ mm

Closed

36 @ 40.9

Open

84 @ 30.5

Installed Height

40.9

Valve Spring

Damper

Free Length

48.5

Approx # of Coils

4

Fastener Tightening Specifications

Item

Nm

Ft Lbs

Camshaft Sprocket Bolt2418
Connecting Rod Cap Nut5037
Crankshaft Damper Bolt7858
Cylinder Head Bolt (In Sequence) (apply thread sealant to bolts)
First Pass5541
Final PassAdd 90 degrees

*Manifold Side*

6 2 3 7

5 1 4 8

* Outer Side *

Exhaust Manifold Bolt2418
Flexplate/Flywheel Bolt8361
Front Timing Cover Case Bolt
8mm2720
10mm3828
Lower Intake Manifold (In Sequence)
First Pass2015
Final Pass3022
Upper Intake Manifod Bolt2518
Main Bearing Cap Bolt  
First Pass5037
Final PassAdd 77 degrees
Oil Filter Adapter6850
Oil Pan Rear Bolts2518
Oil Pan Bolt and Nut (Except Rear 2)108
Oil Pump Bolt4130
Rocker Arm Stud4635
Belt Tensioner3324
Throttle Body Bolts2518
Timing Chain Damper Bolt2518
Water Pump Pulley Bolt2418
Water Pump2418
Large4735
Medium2115
Small108
Exhaust Heat Shield Nut98
Valve Cover Bolt87
Product CodeArticle34Gen1Spec
ConditionNew

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