Engine Mechanical Specifications. Chevrolet Chevrolet C-Series Medium Duty Truck B7 1998

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 1998 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Mechanical - 6.0L and 7.0L 🢒 Engine Mechanical Specifications

Engine Mechanical Specifications 6.0L LS0 (VIN P)

Application	Specification
Application	Metric	English
General Data
Engine Type	V-8
Displacement	6.0L	366 CID
RPO	LS0
VIN	P
Bore	100.0125 -100.0300 mm	3.9375 - 3.9382 in
Stroke	95.5 mm	3.76 in
Compression Ratio	8.0:1
Firing Order	1-8-4-3-6-5-7-2
Spark Plug Gap	0.8890 mm	0.035 in
Cylinder Head
Surface Flatness	0.0762 mm	0.003 in
Exhaust Manifold
Surface Flatness	0.254 mm	0.010 in
Lubrication System
Oil Capacity without Filter Change	5.7 liters	6.0 qt
Oil Pressure (Fully Warmed Oil not Hot)	70 kPa @ 600 RPM 170 kPa @ 2000 RPM	10 psi @ 600 RPM 25 psi @ 2000 RPM
Oil Filter System	Full Flow
Oil Pump Type	Gear Driven
Cylinder Bore
Diameter	100.0125-100.0300 mm	3.9375-3.9382 in
Out-of-Round Production	0.0254 mm (Maximum)	0.0010 in (Maximum)
Out-of-Round Service	0.0510 mm (Maximum)	0.0020 in (Maximum)
Taper Production Thrust Side	0.0127 mm (Maximum)	0.0005 in (Maximum)
Taper Production Relief Side	0.0254 mm (Maximum)	0.0010 in (Maximum)
Taper Service	0.0254 mm (Maximum)	0.0010 in (Maximum)
Piston
Piston Diameter	99.936-99.984 mm	3.934-3.936 in
Clearance Production	0.0457-0.0762 mm	0.0018-0.0030 in
Clearance Service Limit	0.0457-0.0914 mm	0.0018-0.0036 in
Piston Ring Compression
Top Groove Production Clearance	0.0304-0.0737 mm	0.0012-0.0029 in
Second Groove Production Clearance	0.0304-0.0737 mm	0.0012-0.0029 in
Service Limit Groove Clearance	0.0991-0.3050 mm	0.0012-0.0039 in
Top Ring Production Gap	0.254-0.457 mm	0.0100-0.0180 in
Top Ring Service Limit Gap	0.254-0.711 mm	0.0100-0.0190 in
Second Ring Production Gap	0.4060-0.6096 mm	0.0160-0.0240 in
Second Ring Service Limit Gap	0.4060-0.4314 mm	0.0160-0.0250 in
Piston Ring Oil Control
Production Groove Clearance	0.1270-0.1651 mm	0.0050-0.0065 in
Service Limit Groove Clearance	0.1270-0.1905 mm	0.0050-0.0075 in
Production Gap	0.254-0.762 mm	0.010-0.030 in
Service Limit Gap	0.254-1.016 mm	0.010-0.040 in
Piston Pin
Diameter	25.1320-25.1371 mm	0.9895-0.9897 in
Clearance in Piston Production	0.0051-0.0177 mm	0.0002-0.0007 in
Clearance in Piston Service Limit	0.0051-0.0254 mm	0.0002-0.0010 in
Fit in Rod	0.0305-0.0610 mm Interference	0.0012-0.0024 in Interference
Crankshaft
Crankshaft Run Out	0.051 mm (Maximum)	0.002 in (Maximum)
Crankshaft Journal Diameter #1, #2, #3, #4, #5	69.804-69.822 mm	2.7482-2.7489 in
Crankshaft Journal Taper Production	0.0102 mm (Maximum)	0.0004 in (Maximum)
Crankshaft Journal Taper Service Limit	0.0254 mm (Maximum)	0.0010 in (Maximum)
Crankshaft Journal Out-of-Round Production	0.0102 mm (Maximum)	0.0004 in (Maximum)
Crankshaft Journal Out-of-Round Service Limit	0.0254 mm (Maximum)	0.0010 in (Maximum)
Crankshaft Bearing Clearance #1 Production	0.0432-0.0762 mm	0.0017-0.0030 in
Crankshaft Bearing Clearance #2, #3, #4 Production	0.0279-0.0610 mm	0.0011-0.0024 in
Crankshaft Bearing Clearance #5 Production	0.0635-0.0965 mm	0.0025-0.0038 in
Crankshaft Bearing Clearance #1, #2, #3, #4 Service Limit	0.0254-0.0762 mm	0.0010-0.0030 in
Crankshaft Bearing Clearance #5 Service Limit	0.0635-0.1016 mm	0.0025-0.0040 in
Crankshaft End Play	0.1270-0.2794 mm	0.005-0.011 in
Crankpin Diameter	55.8546-55.8698 mm	2.1990-2.1996 in
Crankpin Taper Production	0.0102 mm	0.0004 in
Crankpin Taper Service Limit	0.0254 mm	0.0010 in
Crankpin Out-of-Round Production	0.0102 mm	0.0004 in
Crankpin Out-of-Round Service Limit	0.0254 mm	0.0010 in
Rod Bearing Clearance Production	0.0279-0.0736 mm	0.0011-0.0029 in
Rod Bearing Clearance Service Limit	0.0279-0.0762 mm	0.0011-0.0030 in
Connecting Rod Side Clearance	0.0330-0.5842 mm	0.0013-0.0230 in
Camshaft
Camshaft Run Out(Measured on journals number 2, 3, 4 with journals number 1 and 5 on V-blocks)	0.051 mm (Maximum)	0.002 in (Maximum)
Lobe Lift Intake	5.95 mm	0.2343 in
Lobe Lift Exhaust	5.95 mm	0.2343 in
Lobe Lift Wear	0.051 mm (Maximum)	0.002 in (Maximum)
Journal Diameter	49.471-49.522 mm	1.9477-1.9497 in
Valve System
Lifter	Hydraulic, Flat Followers
Rocker Arm Ratio	1.70:1
Valve Lash Intake	Net Lash
Valve Lash Exhaust	Net Lash
Face Angle (Intake & Exhaust)	45 degrees
Seat Angle (Intake & Exhaust)	46 degrees
Seat Runout (Intake & Exhaust)	0.0500 mm (Maximum)	0.002 in (Maximum)
Seat Width Intake	0.762-1.524 mm	0.030-0.060 in
Seat Width Exhaust	1.5240-2.2860 mm	0.0600-0.0900 in
Stem Clearance Production Intake	0.0254-0.0737 mm	0.0010-0.0029 in
Stem Clearance Production Exhaust	0.0300-0.0787 mm	0.0012-0.0031 in
Stem Clearance Service Intake	0.0254-0.0939 mm	0.0010-0.0037 in
Stem Clearance Service Exhaust	0.0300-0.1244 mm	0.0012-0.0049 in
Valve Spring Pressure Closed	338-374 N @ 46.6850 mm	76-84 lb @ 1.838 in
Valve Spring Pressure Open	912-1008 N @ 35.7120 mm	205-225 lb @ 1.4060 in
Valve Spring Installed Height	46.6850 mm -0.7937 mm	1.838 in -0.030 in

Engine Mechanical Specifications 7.0L LR0 (VIN M)

Application	Specification
Application	Metric	English
General Data
Engine Type	V-8
Displacement	7.0L	427 CID
RPO	LR0
VIN	M
Bore	107.950 mm	4.250 in
Stroke	95.5 mm	3.76 in
Compression Ratio	8.0:1
Firing Order	1-8-4-3-6-5-7-2
Spark Plug Gap	0.8890 mm	0.035 in
Cylinder Head
Surface Flatness	0.0762 mm	0.003 in
Exhaust Manifold
Surface Flatness	0.254 mm	0.010 in
Lubrication System
Oil Capacity without Filter Change	5.7 liters	6.0 qt
Oil Pressure (Fully Warmed Oil not Hot)	70 kPa @ 600 RPM 170 kPa @ 2000 RPM	10 psi @ 600 RPM 25 psi @ 2000 RPM
Oil Filter System	Full Flow
Oil Pump Type	Gear Driven
Cylinder Bore
Diameter	107.950-107.968 mm	4.2500-4.2507 in
Out-of-Round Production	0.0254 mm (Maximum)	0.0010 in (Maximum)
Out-of-Round Service	0.0510 mm (Maximum)	0.0020 in (Maximum)
Taper Production Thrust Side	0.0127 mm (Maximum)	0.0005 in (Maximum)
Taper Production Relief Side	0.0254 mm (Maximum)	0.0010 in (Maximum)
Taper Service	0.0254 mm (Maximum)	0.0010 in (Maximum)
Piston
Piston Diameter	107.873-107.922 mm	4.247-4.248 in
Clearance Production	0.0457-0.0762 mm	0.0018-0.0030 in
Clearance Service Limit	0.0457-0.0914 mm	0.0018-0.0036 in
Piston Ring Compression
Top Groove Production Clearance	0.0304-0.0737 mm	0.0012-0.0029 in
Second Groove Production Clearance	0.0304-0.0737 mm	0.0012-0.0029 in
Service Limit Groove Clearance	0.0991-0.3050 mm	0.0012-0.0039 in
Top Ring Production Gap	0.254-0.4570 mm	0.010-0.0180 in
Top Ring Service Limit Gap	0.254-0.7110 mm	0.0100-0.0190 in
Second Ring Production Gap	0.4060-0.6096 mm	0.016-0.0240 in
Second Ring Service Limit Gap	0.4060-0.4314 mm	0.0160-0.0250 in
Piston Ring Oil Control
Production Groove Clearance	0.127-0.1651 mm	0.0050-0.0065 in
Service Limit Groove Clearance	0.127-0.1905 mm	0.0050-0.0075 in
Production Gap	0.254-0.762 mm	0.010-0.030 in
Service Limit Gap	0.254-1.016 mm	0.010-0.040 in
Piston Pin
Diameter	25.1320-25.1371 mm	0.9895-0.9897 in
Clearance in Piston Production	0.0051-0.0177 mm	0.0002-0.0007 in
Clearance in Piston Service Limit	0.0051-0.0254 mm	0.0002-0.0010 in
Fit in Rod	0.0305-0.0610 mm Interference	0.0012-0.0024 in Interference
Crankshaft
Crankshaft Run Out	0.051 mm (Maximum)	0.002 in (Maximum)
Crankshaft Journal Diameter #1, #2, #3, #4, #5	69.804-69.822 mm	2.7482-2.7489 in
Crankshaft Journal Taper Production	0.0102 mm (Maximum)	0.0004 in (Maximum)
Crankshaft Journal Taper Service Limit	0.0254 mm (Maximum)	0.0010 in (Maximum)
Crankshaft Journal Out-of-Round Production	0.0102 mm (Maximum)	0.0004 in (Maximum)
Crankshaft Journal Out-of-Round Service Limit	0.0254 mm (Maximum)	0.0010 in (Maximum)
Crankshaft Bearing Clearance #1 Production	0.0432-0.0762 mm	0.0017-0.0030 in
Crankshaft Bearing Clearance #2, #3, #4 Production	0.0279-0.0610 mm	0.0011-0.0024 in
Crankshaft Bearing Clearance #5 Production	0.0635-0.0965 mm	0.0025-0.0038 in
Crankshaft Bearing Clearance #1, #2, #3, #4 Service Limit	0.0254-0.0762 mm	0.0010-0.0030 in
Crankshaft Bearing Clearance #5 Service Limit	0.0635-0.1016 mm	0.0025-0.0040 in
Crankshaft End Play	0.1270-0.2794 mm	0.005-0.011 in
Crankpin Diameter	55.8546-55.8698 mm	2.1990-2.1996 in
Crankpin Taper Production	0.0102 mm	0.0004 in
Crankpin Taper Service Limit	0.0254 mm	0.0010 in
Crankpin Out-of-Round Production	0.0102 mm	0.0004 in
Crankpin Out-of-Round Service Limit	0.0254 mm	0.0010 in
Rod Bearing Clearance Production	0.0279-0.0736 mm	0.0011-0.0029 in
Rod Bearing Clearance Service Limit	0.0279-0.0762 mm	0.0011-0.0030 in
Connecting Rod Side Clearance	0.0330-0.5842 mm	0.0013-0.0230 in
Camshaft
Camshaft Run Out(Measured on journals number 2, 3, 4 with journals number 1 and 5 on V-blocks)	0.051 mm (Maximum)	0.002 in (Maximum)
Lobe Lift Intake	5.95 mm	0.2343 in
Lobe Lift Exhaust	6.42 mm	0.2530 in
Lobe Lift Wear	0.051 mm (Maximum)	0.002 in (Maximum)
Journal Diameter	49.471-49.522 mm	1.9477-1.9497 in
Valve System
Lifter	Hydraulic, Flat Followers
Rocker Arm Ratio	1.70:1
Valve Lash Intake	Net Lash
Valve Lash Exhaust	Net Lash
Face Angle (Intake & Exhaust)	45 degrees
Seat Angle (Intake & Exhaust)	46 degrees
Seat Runout (Intake & Exhaust)	0.0500 mm (Maximum)	0.002 in (Maximum)
Seat Width Intake	0.762-1.524 mm	0.030-0.060 in
Seat Width Exhaust	1.5240-2.2860 mm	0.0600-0.0900 in
Stem Clearance Production Intake	0.0254-0.0737 mm	0.0010-0.0029 in
Stem Clearance Production Exhaust	0.0300-0.0787 mm	0.0012-0.0031 in
Stem Clearance Service Intake	0.0254-0.0939 mm	0.0010-0.0037 in
Stem Clearance Service Exhaust	0.0300-0.1244 mm	0.0012-0.0049 in
Valve Spring Pressure Closed	338-374 N @ 46.6850 mm	76-84 lb @ 1.838 in
Valve Spring Pressure Open	912-1008 N @ 35.7120 mm	205-225 lb @ 1.406 in
Valve Spring Installed Height	46.6850 mm -0.7937 mm	1.838 in -0.030 in