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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 | [1997 Curves] 1994-1997 Engine Serial Number
2000-2001 Engine S/N
|
Bore & Stroke | 4.00 x 3.58 in. (101.6 x 90.9 mm.) |
Displacement | |
Compression Ratio | 9.1 :1 |
Horsepower | |
Torque | 330 ft. lbs. (448 N.m) @ 3250 rpm |
Firing Order | |
Lubrication | Pressure Feed - Full Flow Filtration |
Engine Oil Capacity | |
Cooling System | Liquid Cooled - Forced Circulation |
Cooling Capacity | |
Cylinder Block | Cast Iron |
Crankshaft | |
Cylinder Head | Cast Iron |
Combustion Cambers | |
Camshaft | Nodular Cast Iron |
Throttle Body Bore | 50 mm |
Pistons |
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
| |
Diametrical Clearance
| |
End Play . . . . . . . . . . . . . . . . . . . . . . . 0.051-0.178 mm, 0.002-0.007 in Max Allowable . . . . . . . . . . . . . . . . 0.254 mm, 0.010 in | |
Main Bearing Journals
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Valves | ||
Stem to guide clearance
| ||
Guide Diameter (std) 0.313 - 0.314 inch | ||
Intake | ||
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 | ||
Valve Lift (zero lash) | 0.410' | |
Push Rod Length | ||
Valve Springs
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Last Update: August 1, 2008
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