WORKHORSE CUSTOM CHASSIS
Service Manual
W SeriesWCC
SECTION
6.2
PAGE
8
Engine Mechanical
W Series Chassis
TOC
© 2006 WorkhorseCustom Chassis — All Rights Reserved
ENGINE MECHANICAL SPECIFICATIONS
L18 (8.1L) ENGINE
L18 Engine Application
Specifi cation
Metric English
General
• Engine Type V8
• Displacement 8.1L 496 CID
• RPO L18
• VIN - Light Duty G
• VIN - Medium Duty G
• Bore 107.95 mm 4.25 in
• Stroke 111.0 mm 4.37 in
• Compression Ratio 9.1:1
• Firing Order 1-8-7-2-6-5-4-3
• Spark Plug Gap 1.52 mm 0.06 in
Block
• Crankshaft Main Bearing Bore Diameter 74.606-74.622 mm 2.9372-2.9379 in
• Cylinder Bore Diameter - Production 107.95-107.968 mm 4.25-4.2507 in
• Cylinder Bore Diameter - Service 107.94-107.99 mm 4.2496-4.2516 in
• Cylinder Bore Out-of-Round - Production, Maximum Minus Minimum
Bore Diameter
0.018 mm 0.0007 in
• Cylinder Bore Out-of-Round - Service, Maximum Minus Minimum Bore
Diameter
0.05 mm 0.002 in
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General