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Home >> Chevrolet >> 2009 >> Impala LT, 3.5 N >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 3.5L >> Specifications >> Engine Mechanical Specifications

Engine Mechanical Specifications

Application Specification
Metric English
General Data
  • Engine Type
 60 degree V-6
  • Displacement
 3.5L 214 cu in
  • RPO
 LZ4 (LZE-E85)
  • VIN
 N (K-E85)
  • Bore
 99 mm 3.90 in
  • Stroke
 76 mm 2.99 in
  • Compression Ratio
 9.8:1
  • Firing Order
 123456
  • Spark Plug Gap
 1.00 mm 0.040 in
Block
  • Camshaft Bearing Bore Diameter - Front and Rear
 51.03-51.08 mm 2.009-2.011 in
  • Camshaft Bearing Bore Diameter - Middle #2, #3
 50.77-50.82 mm 1.999-2.001 in
  • Crankshaft Main Bearing Bore Diameter
 72.1535-72.1695 mm 2.840-2.841 in
  • Crankshaft Main Bearing Bore Out-of-Round
 0.008 mm 0.00031 in
  • Cylinder Bore Diameter
 99.000-99.018 mm 3.897-3.898 in
  • Cylinder Bore Out-of-Round - Diameter - Production
 0.020 mm 0.0008 in
  • Cylinder Bore Out-of-Round - Diameter - Service
 0.025 mm 0.001 in
  • Cylinder Bore Taper - Production
 0.020 mm 0.0008 in
  • Cylinder Bore Taper - Service
 0.025 mm 0.001 in
  • Cylinder Head Deck Height
 224 mm 8.818 in
  • Cylinder Head Deck Surface Flatness
 0.05 mm per 152 mm 0.0019 in per 6 in
  • Valve Lifter Bore Diameter
 21.417-21.455 mm 0.843-0.844 in
Camshaft
  • Camshaft Bearing Inside Diameter
 51.500-51.525 mm 2.028-2.029 in
  • Camshaft Journal Diameter
 51.415-51.440 mm 2.024-2.025 in
  • Camshaft Journal Out-of-Round
 0.025 mm 0.001 in
  • Camshaft Lobe Lift - Exhaust
 6.9263 mm 0.2727 in
  • Camshaft Lobe Lift - Intake
 6.9263 mm 0.2727 in
Cooling System
  • Thermostat Full Open Temperature
 195 degrees
Connecting Rod
  • Connecting Rod Bearing Clearance
 0.018-0.062 mm 0.0007-0.017 in
  • Connecting Rod Bore Diameter
 60.322-60.338 mm 2.375-2.376 in
  • Connecting Rod Bore Out-of-Round
 0.006 mm 0.00023 in
  • Connecting Rod Length - Center to Center
 150 mm 5.9 in
  • Connecting Rod Side Clearance
 0.200-0.241 mm 0.008-0.009 in
Crankshaft
  • Connecting Rod Journal Diameter
 57.122-57.138 mm 2.2489-2.2495 in
  • Connecting Rod Journal Out-of-Round
 0.005 mm 0.0002 in
  • Connecting Rod Journal Taper
 0.005 mm 0.0002 in
  • Connecting Rod Journal Width
 21.92-22.08 mm 0.863-0.869 in
  • Crankshaft End Play
 0.060-0.210 mm 0.0024-0.0083 in
  • Crankshaft Main Bearing Journal Width
 23.9-24.1 mm 0.941-0.949 in
  • Crankshaft Main Bearing Clearance - Except #3
 0.019-0.064 mm 0.0008-0.0025 in
  • Crankshaft Main Bearing Clearance - #3 Thrust Bearing
 0.032-0.077 mm 0.0012-0.0030 in
  • Crankshaft Main Journal Diameter
 67.239-67.257 mm 2.6473-2.6483 in
  • Crankshaft Main Journal Out-of-Round
 0.005 mm 0.0002 in
  • Crankshaft Main Journal Taper
 0.005 mm 0.0002 in
  • Crankshaft Rear Flange Runout
 0.04 mm 0.0016 in
Cylinder Head
  • Combustion Chamber Depth - at Measurement Point
 2.2 mm 0.087 in
  • Surface Finish - Maximum
 2.8 RA
  • Surface Flatness - Block Deck
 0.08 mm Per 152 mm 0.003 in Per 6 in
  • Surface Flatness - Exhaust Manifold Deck
 0.1 mm 0.004 in
  • Surface Flatness - Intake Manifold Deck
 0.1 mm 0.004 in
  • Valve Guide Bore - Exhaust
 8.01 mm 0.315 in
  • Valve Guide Bore - Intake
 8.01 mm 0.315 in
  • Valve Guide Installed Height
 16.6 mm 0.654 in
Lubrication System
  • Oil Capacity - with Filter
 3.8 liter 4.0 quarts
  • Oil Capacity - without Filter
 3.3 liter 3.5 quarts
  • Oil Pressure - @ 1850 RPM
 207-310 kPa 30-45 PSI
Oil Pump
  • Gear Diameter
 50.749-50.800 mm 1.997-1.999 in
  • Gear Pocket - Depth
 26.274-26.332 mm 1.034-1.036 in
  • Gear Pocket - Diameter
 50.902-50.952 mm 2.004-2.005 in
  • Gears Lash
 0.094-0.195 mm 0.0037-0.0077 in
  • Relief Valve-to-Bore Clearance
 0.038-0.089 mm 0.0015-0.0035 in
Piston Ring End Gap
  • First Compression Ring
 0.18-0.39 mm 0.007-0.015 in
  • Second Compression Ring
 0.48-0.74 mm 0.019-0.029 in
  • Oil Control Ring
 0.25-0.74 mm 0.010-0.029 in
Piston Ring to Groove Clearance
  • First Compression Ring
 0.03-0.076 mm 0.001-0.003 in
  • Second Compression Ring
 0.04-0.078 mm 0.002-0.003 in
  • Oil Control Ring
 0.09 mm 0.004 in
Piston Ring Thickness
  • First Compression Ring
 1.164-1.190 mm 0.046-0.047 in
  • Second Compression Ring
 1.472-1.490 mm 0.058 in
  • Oil Control Ring - Maximum
 2.440 mm 0.096 in
Piston
  • Piston Diameter - production
 98.970-99.008 mm 3.896-3.897 in
  • Piston Diameter - service limit
 98.950 mm 3.895 in
  • Piston Pin Bore Diameter
 24.008-24.013 mm 0.9452-0.9454 in
  • Piston Ring Groove Width
 1.23-1.255 mm 0.048-0.049 in
  • Piston to Bore Clearance - production
 -0.029 to 0.029 mm -0.0011 to 0.011 in
  • Piston to Bore Clearance - service limit - Maximum
 0.080 mm 0.003 in
Pin
  • Piston Pin Clearance to Connecting Rod Bore - Press Fit
 -0.022 to -0.044 mm -0.0008 to -0.0017 in
  • Piston Pin Clearance to Piston Pin Bore
 0.008-0.016 mm 0.0003-0.0006 in
  • Piston Pin Diameter
 23.997-24.000 mm 0.9447-0.9448 in
  • Piston Pin Length
 59.87-60.13 mm 2.35-2.36 in
Valves
  • Valve Face Angle
 45 degrees
  • Valve Seat Angle
 46 degrees
  • Valve Seat Depth - Exhaust - from deck face
 8.9-9.1 mm 0.350-0.358 in
  • Valve Seat Depth - Intake - from deck face
 7.9-8.1 mm 0.311-0.318 in
  • Valve Seat Width - Exhaust
 1.70-2.0 mm 0.067-0.079 in
  • Valve Seat Width - Intake
 1.55-1.80 mm 0.061-0.071 in
  • Valve Stem-to-Guide Clearance
 0.024-0.064 mm 0.0009-0.0025 in
Valve Lifters/Push Rods
  • Push Rod Length - Intake
 147.51 mm 5.81 in
  • Push Rod Length - Exhaust
 154.87 mm 6.1 in
Valve Springs
  • Valve Spring Free Length
 52.88 mm 2.08 in
  • Valve Spring Assembly Installed Height
 46.75 mm 1.84 in
  • Valve Spring Load - Closed - Without Damper
 340±19 N 43.2 mm 76.4 lb 1.701 in
  • Valve Spring Load - Open - Without Damper
 1023±44 N 32 mm 230 lb 1.260 in
  • Valve Spring Total Number of Coils
 8.01
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