engine
Main Bearings Torque Specs
for 2003 Chevrolet Silverado 1500 4.3L V6 Vortec · 4WD
Units
12 fasteners
Seq
Component
Torque
Angle
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Flywheel Bolts★ OEM verified
Often TTY, tighten in star pattern | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
75 lb-ft · 101.7 Nm
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Flywheel Bolts★ OEM verified
Often TTY, tighten in star pattern | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
75 lb-ft · 101.7 Nm
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Main Bearing Cap Bolts
Step 1: 15 lb-ft. Step 2: +75°.
15 lb-ft · 20 Nm
75°
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Main Bearing Cap Bolts
Step 1: 15 lb-ft. Step 2: +75°.
15 lb-ft · 20 Nm
75°
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Oil Drain Plug★ OEM verified
Use new crush washer | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
18 lb-ft · 24.4 Nm
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Oil Drain Plug★ OEM verified
Use new crush washer | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
18 lb-ft · 24.4 Nm
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Oil Pan Bolt
Tighten in sequence | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
9 lb-ft · 12 Nm
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Oil Pan Bolt
Tighten in sequence | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
9 lb-ft · 12 Nm
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Oil Pump Pickup Tube
⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
9 lb-ft · 12 Nm
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Oil Pump Pickup Tube
⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
9 lb-ft · 12 Nm
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Transmission-to-Engine Bolts
⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
41 lb-ft · 55 Nm
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Transmission-to-Engine Bolts
⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
41 lb-ft · 55 Nm
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