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5.9L Engine Specifications
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    The 5.9L 360 CID eight cylinder engine is a V-type, lightweight, single cam, overhead valve engine with hydraulic roller tappets. This engine is designed to run on unleaded fuel with a minimum octane rating of 87. Engine lubrication system consists of a rotor type oil pump and a full flow oil filter.The cylinders are numbered from fron to rear, with cylinders 1, 3, 5, 7 on the left side and 2, 4, 6, 8 on the right side.
   Valves are arranged in-line and and inclined 18 degrees. Rocker pivot supports and valve guides are cast integral with the heads.
   Pistons are elliptically turned so that the diameter of the pin boss is less than the diameter accross the thrust face. This allows for expansion under normal operating conditions. When the piston warms to operating temperature, expansion forces the the pin bosses away from each other, causing the piston to assume a more nearly round shape. All pistons are machined to the same weight regardless of size, to maintain piston balance. The piston pin is pressed into the connecting rod.

Engine Type
360 cid 90' V-8 OHV 


[1997 Curves]

1994-1997 Engine Serial Number
X M 5.2L T YYYY XXXXXXXX

  • X=last digit of model year
  • M= Plant - Mound road
    • S- Saltillo
    • T - Trenton
    • K - Toluca
  • 5.9L=engine displacement
  • T=usage (truck)
  • YYYY=Month/Day
  • XXXXXXXX=8 digit serial no

2000-2001 Engine S/N
X M 318 YYYY XXXX

  • X=last digit of model year
  • M= Plant - Mound road
    • S- Saltillo
    • T - Trenton
    • K - Toluca
  • 360=engine displacement (CID)
  • YYYY= Month/Day
  • XXXX=Engine Serial Code

 

 

Bore & Stroke
4.00 x 3.58 in. (101.6 x 90.9 mm.) 
Displacement
360 cu.in. (5.9 L)
Compression Ratio 
9.1 :1 
Horsepower
245 hp @4000 rpm
Torque 
330 ft. lbs. (448 N.m) @ 3250 rpm 
Firing Order
1-8-4-3-6-5-7-2 
Lubrication
Pressure Feed - Full Flow Filtration
Engine Oil Capacity 
5.0 Qts. (4.7 L) with Filter 
Cooling System
Liquid Cooled - Forced Circulation 
Cooling Capacity
15.5 Qts. (14.7 L) 
Cylinder Block
Cast Iron 
Crankshaft
Nodular Cast Iron 
Cylinder Head
Cast Iron 
Combustion Cambers 
Wedge - High Swirl Valve Shrouding 
Camshaft
Nodular Cast Iron 
Throttle Body Bore 50 mm
Pistons
Cast Aluminum Alloy 
Spark Plugs: 14mm thread, 19mm reach, 16mm hex wrench, resistor
  Year   Manufacturer   Part No.   Stock Number Gap   Notes
1994-1995 HD NGK WR5 2438 .035  
1994-1995 HD NGK WR5VX 4385 .035 Platinum
1996-1997 NGK FR4 5155 .035  
1998-1999 LD, HD NGK FR5-1 7252 .040  
Camshaft - Nodular Cast Iron
Bearing Number 1 2 3 4 5
Bearing Diameter mm 50.800 - 50.825 50.394 - 50.419 50.013 - 50.038 49.606 - 49.623 39.688 - 39.713
in 2.000-2.001 1.984-1.985 1.969-1.970 1.953-1.954 1.5625-1.5635
Journal Diameter mm 50.749-50.775 50.343-50.368 49.962-49.987 49.555-49.581 39.637-39.662
in 1.998-1.999 1.982-1.983 1.967-1.968 1.951-1.952 1.5605-1.5615

Diametrical Clearance:  0.0254-0.0762 mm,       0.001-0.003 in
Max Allowable:     0.127 mm,     0.005 in

End Play:                0.051-0.254 mm,     0.002-0.010 in
Connecting Rods - Forged Steel
Bearing Clearance 0.0127-0.0559 mm,    0.0005-0.0022 in
Piston Pin Bore Diameter 24.966-24.978mm,    0.9829-0.9834 in
Side Clearance (two rods) 0.152-0.356mm,    0.006-0.014 in
Total Weight (less bearing) 758 grams,    25.74 oz
Crankshaft - Nodular Cast Iron

Connecting Rod

Journal Diameter . . . . . . . . . . . . .  53.950-53.975 mm,    2.124-2.125 in
Out of Round (max) . . . . . . . . . .    0.0254 mm,    0.001 in
Taper (Max) . . . . . .. . . . . . . . . .    0.0254 mm,    0.001 in

Diametrical Clearance

No 1: . . . . . . . . . . . . . . . . . . . . . . . . .  0.0127-0.0381 mm,    0.0005-0.0015 in
Max Allowable (No 1) . . . . . . . . . . .  0.03815 mm, 0.0015 in
No 2, 3, 4, and 5 . . . . . . . . . . . . . . . .  0.0127-0.0508 mm,    0.0005-0.0020 in
Max Allowable (Nos. 2, 3, 4, & 5) . . 0.0635 mm, 0.0025 in

End Play . . . . . . . . . . . . . . . . . . . . . . .  0.051-0.178 mm,    0.002-0.007 in
   Max Allowable . . . . . . . . . . . . . . . .  0.254 mm,    0.010 in

Main Bearing Journals

Diameter . . . . . . . . . . . . . . . . . . . .  71.361-71.387 mm,    2.8095-2.8105 in
Out-of-Round (Max) . . . . . . . . . . . 0.0254 mm,    0.001 in
Taper (Max) . . . . . . . . . . . . . . . . .  0.0254 mm,    0.001 in

Valves
Stem to guide clearance
  • 0.001- 0.003 inch
  • maximum allowable (rocking method) 0.017 inch
Guide Diameter (std) 0.313 - 0.314 inch
 
Intake
Exhaust
Face angle 43.25 - 43.75 degrees 43.25 - 43.75 degrees
Seat Angle 44.25 - 44.75 degrees 44.25 - 44.75 degrees
Seat Width 0.040-0.060"  (1.016-1.524mm) 0.060-0.080"  (1.524-2.032mm)
Head Diameter 1.88 inch (47.752mm) 1.617 inch (41.072 mm)
Length Overall 4.969 - 4.994 inch 4.978 - 5.012 inch
Stem diameter 0.311 - 0.312 inch 0.371 - 0.372
Valve Timing

see table

Valve Lift (zero lash)
0.410"
Push Rod Length
6.915-6.935"   175.64-176.15mm

Valve Springs

  • Free length 1.967"   49.962mm
  • Installed height 1.64"  41.66mm
  • Spring Tension
    • Valve closed 85 lbs @ 1.64"
    • Valve open 200 lbs @ 1.212
  • Number of Coils 6.8
  • Wire Diameter 0.177" 4.50mm

This page would not have been possible without the help of Hank LaViers,
who graciously loaned me his extensive Mopar engine library

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Last Update: August 1, 2008