Cylinder Block Assembly: Specifications
Connecting Rod BoltsFirst Pass 20 Nm (15 ft. lbs.)
Final Pass 75 degrees
Crankshaft Balancer Bolt
Installation Pass to Ensure the Balancer is Completely Installed
330 Nm (240 ft. lbs.)
First Pass - Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes 50 Nm (37 ft. lbs.)
Final Pass 140 degrees
Crankshaft Bearing Cap Bolts - Inner Bolts - M10 bolts (1-10)
First Pass in Sequence 20 Nm (15 ft. lbs.)
Final Pass in Sequence 80 degrees
Crankshaft Bearing Cap Bolts - Outer Bolt/Studs - (11-20)
First Pass in Sequence 20 Nm (15 ft. lbs.)
Final Pass in Sequence 51 degrees
Crankshaft Bearing Cap Side Bolts 25 Nm (18 ft. lbs.)
Crankshaft Oil Deflector Nuts 25 Nm (18 ft. lbs.)
Crankshaft Position Sensor Bolt 25 Nm (18 ft. lbs.)
* Engine Type V8
* Displacement 5.3L (325 CID)
* RPO LS4
* VIN C
* Bore 96.0-96.018 mm (3.779-3.78 inch)
* Stroke 92.0 mm (3.622 inch)
* Compression Ratio 9.9:1
* Firing Order 1-8-7-2-6-5-4-3
* Displacement on Demand Cylinders 1-4-6-7
^ Crankshaft Main Bearing Bore Diameter 69.871-69.889 mm (2.75-2.751 inch)
^ Crankshaft Main Bearing Bore Out-of-Round 0.006 mm (0.0002 inch)
^ Cylinder Bore Diameter 96.0-96.018 mm (3.779-3.78 inch)
^ Cylinder Bore Taper - Thrust Side 0.018 mm (0.0007 inch)
Connecting Rod
^ Connecting Rod Bearing Clearance - Production 0.023-0.065 mm (0.0009-0.0025 inch)
^ Connecting Rod Bearing Clearance - Service 0.023-0.076 mm (0.0009-0.003 inch)
^ Connecting Rod Bore Diameter - Bearing End 56.505-56.525 mm (2.224-2.225 inch)
^ Connecting Rod Bore Out-of-Round - Bearing End - Production 0.004-0.008 mm (0.00015-0.0003 inch)
^ Connecting Rod Bore Out-of-Round - Bearing End - Service 0.004-0.008 mm (0.00015-0.0003 inch)
^ Connecting Rod Side Clearance 0.11-0.51 mm (0.00433-0.02 inch)
Crankshaft
^ Connecting Rod Journal Diameter - Production 53.318-53.338 mm (2.0991-2.0999 inch)
^ Connecting Rod Journal Diameter - Service 53.308 mm (2.0987 inch)
^ Connecting Rod Journal Out-of-Round - Production 0.005 mm (0.0002 inch)
^ Connecting Rod Journal Out-of-Round - Service 0.01 mm (0.0004 inch)
Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length
^ Production 0.005 mm (0.0002 inch)
^ Service 0.02 mm (0.00078 inch)
Crankshaft End Play 0.04-0.2 mm (0.0015-0.0078 inch)
Crankshaft Main Bearing Clearance
^ Production 0.02-0.052 mm (0.0008-0.0021 inch)
^ Service 0.02-0.065 mm (0.0008-0.0025 inch)
Crankshaft Main Journal Diameter
^ Production 64.992-65.008 mm (2.558-2.559 inch)
^ Service 64.992 mm (2.558 inch)
Crankshaft Main Journal Out-of-Round
^ Production 0.003 mm (0.000118 inch)
^ Service 0.008 mm (0.0003 inch)
Crankshaft Main Journal Taper
^ Production 0.01 mm (0.0004 inch)
^ Service 0.02 mm (0.00078 inch)
Crankshaft Rear Flange Runout 0.05 mm (0.002 inch)
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 inch) Below Tooth Diameter 0.7 mm (0.028 inch)
Crankshaft Thrust Surface
^ Production 26.14-26.22 mm (1.029-1.0315 inch)
^ Service 26.22 mm (1.0315 inch)
Crankshaft Thrust Surface Runout 0.025 mm (0.001 inch)
Cylinder Head Deck Surface Flatness - Measured Within a 152.4 mm (6.0 inch) Area 0.11 mm (0.004 inch)
Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck 0.22 mm (0.008 inch)
Piston Rings
Piston Ring End Gap First Compression Ring Measured in Cylinder Bore
^ Production 0.23-0.44 mm (0.009-0.017 inch)
^ Service 0.23-0.5 mm (0.009-0.0196 inch)
Piston Ring End Gap - Second Compression Ring - Measured in Cylinder Bore
^ Production 0.44-0.7 mm (0.017-0.027 inch)
^ Service 0.44-0.76 mm (0.0173-0.03 inch)
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore -
^ Production 0.18-0.75 mm (0.007-0.029 inch)
^ Service 0.18-0.81 mm (0.007-0.032 inch)
Piston Ring to Groove Clearance - First Compression Ring
^ Production 0.04-0.085 mm (0.00157-0.00335 inch)
^ Service 0.04-0.085 mm (0.00157-0.00335 inch)
Piston Ring to Groove Clearance - Second Compression Ring
^ Production 0.04-0.078 mm
^ Service 0.04-0.078 mm (0.00157-0.0031 inch)
Piston Ring to Groove Clearance - Oil Control Ring
^ Production 0.012-0.2 mm (0.0005-0.0078 inch)
^ Service 0.012-0.2 mm (0.0005-0.0078 inch)
Pistons and Pins
^ Piston - Piston Diameter - Measured Over Skirt Coating 96.002-96.036 mm (3.779-3.78 inch)
Piston - Piston to Bore Clearance
^ Production -0.036 to +0.016 mm (-0.0014 to +0.0006 inch)
^ Service Limit with Skirt Coating Worn Off 0.071 mm (0.0028 inch)
Pin - Piston Pin Fit in Connecting Rod Bore
^ Production 0.007-0.02 mm (0.00027-0.00078 inch)
^ Service 0.007-0.022 mm (0.00027-0.00086 inch)
Pin - Piston Pin Clearance to Piston Pin Bore
^ Production 0.002-0.01 mm (0.00008-0.00004 inch)
^ Service 0.002-0.015 mm (0.00008-0.00006 in)
Pin - Piston Pin Diameter 23.997-24.0 mm (0.9447-0.9448 inch)