ENGINE MECHANICAL SPECIFICATIONS (LS6)
Engine Mechanical Specifications (LS6)
z
Valves - Valve Lift - Intake
11.79 mm
0.464 in
z
Valves - Valve Lift - Exhaust
12.16 mm
0.479 in
z
Valves - Valve Seat Angle
46 degrees
z
Valves - Valve Seat Runout
0.05 mm
0.002 in
z
Valves - Valve Seat Width - Exhaust
1.78 mm
0.07 in
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Valves - Valve Seat Width - Intake
1.02 mm
0.04 in
z
Valves - Valve Stem Diameter- Production
7.955-7.976 mm
0.313-0.314 in
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Valves - Valve Stem Diameter- Service
7.96 mm
0.314 in
z
Valves - Valve Stem-to-Guide Clearance - Production -
Intake
0.025-0.066 mm
0.001-0.0026 in
z
Valves - Valve Stem-to-Guide Clearance - Service -
Intake
0.093 mm
0.0037 in
z
Valves - Valve Stem-to-Guide Clearance - Production -
Exhaust
0.025-0.066 mm
0.001-0.0026 in
z
Valves - Valve Stem-to-Guide Clearance - Service -
Exhaust
0.093 mm
0.0037 in
z
Rocker Arms - Valve Rocker Arm Ratio
1.70:1
z
Valve Springs - Valve Spring Free Length
52.9 mm
2.08 in
z
Valve Springs - Valve Spring Installed Height
45.75 mm
1.8 in
z
Valve Springs - Valve Spring Load - Closed
340 N at 45.75
mm
76 lb at 1.8 in
z
Valve Springs - Valve Spring Load - Open
980 N at 33.55
mm
220 lb at 1.32 in
Application
Specification
Metric
English
General
z
Engine Type
V 8
z
Displacement
5.7 L - 5665 cc
346 CID
z
RPO
LS6
z
VIN
S
z
Bore
99.0-99.018 mm
3.897-3.898 in
z
Stroke
92.0 mm
3.622 in
10.5:1
2004 Chevrolet Corvette
2004 ENGINE PERFORMANCE Engine Mechanical (Introduction) - 5.7L - Corvette
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December-24-07 10:50:07 AM
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