Camshaft

• Standard Camshaft Lobe Height Intake

36.151-36.331

1.4241-1.4303

• Standard Camshaft Lobe Height Intake Exhaust

36.356-36.516

1.4314-1.4376

• Minimum Camshaft Lobe Height Intake

36.071

1.4202

• Minimum Camshaft Lobe Height Intake Exhaust

36.256

1.4275

• Camshaft Runout (Maximum)

0-.10

0.0039

• Camshaft Journal Outside Diameter Standard

27.939-27.960

1.1-1.1008

• Camshaft Journal Bore Inside Diameter Standard

28.00-28.021

1.1024-1.1031

• Camshaft Journal-to-Journal Bore Clearance Standard

0.040-0.082

0.0016-0.0032

• Maximum

0.12

0.0047

• Connecting Rods and Bearings

• Connecting Rod Side Clearance Standard

0.10-0.21

0.0039-0.0078

• Maximum Limit

0.35

0.0137

• Connecting Rod Bow Limit

0.050

0.0020

• Connecting Rod Twist Limit

0.10

0.0039

• Crankshaft Diameter Out-of0Round and Taper Limit

0.01

0.0004

• Standard

43.982-44.000

1.7316-1.7322

• 0.25 mm (0.0098") Undersize

43.732-43.750

1.7218-1.7224

• Connecting Rod Bore Inside Diameter

19.003-19.011

0.7481-0.7485

• Connecting Rod Bearing Clearance Standard

0.020-0.050

0.0008-0.019

• Limit

0.080

0.0031

Crankshaft

• Crankshaft Journal Taper or Out-of-Round

0.01

0.0004

• Crankshaft Runout at Center Journal

0.06

0.0023

• Crankshaft Thrust Play Standard

0.11-0.30.201

0.0044-0.0122

• Maximum

0.38

0.0149

• Thrust Bearing Thickness Standard

2.5000

0.0984

• 0.125 mm (0.0049")

2.5630

0.1009

• Cylinder Head

• Cylinder Head Gasket Surface Distortion (Standard)

0.03

0.0012

• Maximum

0.06

0.0024

• Cylinder Head Seating Distortion Intake and Exhaust Manifolds

0.10

0.004

• Cylinder Block

• Cylinder Bore Limit

75.15

2.9586

• Gasket Surface Distortion Specification

0.03

0.0012

• Gasket Surface Distortion Limit

0.06

0.0024

• Taper and Out-of-Round Limits

0.10

0.0039

Flywheel

• Flywheel Face Runout

0.20

0.0078

• Main Bearings

• Main Bearing Clearance Standard

0.020-0.040

0.0008-0.0016

• Undersize

0.020-0.040

0.0008-0.0016

• Limit

0.06

0.0023

• Standard Main Bearing Thickness Green

1.996-2

0.0786-0.0787

• Black

1.999-2.003

0.0787-0.0788

• Colorless

2.002-2.006

0.0788-0.0789

• Yellow

2.005-2.009

0.0789-0.0790

• Blue

2.008-2.012

0.0790-0.0791

• 0.25 mm (0.0098") Undersized Bearings Green and Red

2.1212-2.125

0.0835-0.0836

• Black and Red

2.124-2.128

0.0836-0.0837

• Red

2.127-2.131

0.0837-0.0838

• Yellow and Red

2.130-2.134

0.0838-0.0839

• Blue and Red

2.133-2.137

0.0839-0.0840

• Crankshaft Journal Diameter Stamping

51.994-52.000

2.0470-2.0472

• 2 Inch Stamping

51.988-51.994

2.0468-2.0470

• 3 Inch Stamping

51.982-51.988

2.0465-2.0468

• Undersized

51.732-51.750

2.0367-2.0373

• Main Bearing Cap Bore Diameter (Without Bearing)A Inch Stamping

56.000-56.006

2.2047-2.2050

• Main Bearing Cap Bore Diameter (Without Bearing)B Inch Stamping

56.006-56.012

2.2050-2.2052

• Main Bearing Cap Bore Diameter (Without Bearing)C Inch Stamping

56.012-56.018

2.2052-2.2054

Oil Pump

• Oil Pump Pressure Relief

4.0 kg/cm

400 kPa

56 psi

• Oil Pump Outer Rotor-to-Oil Pump Body Radial Clearance (Maximum)

0.310 mm

0.0122 Inches

• Oil Pump Housing-to-Oil Pump Gear Set (Side Clearance) (Maximum)

0.15 mm

0.0059 Inches

• Pistons

• Piston Pin ClearanceStandard

0.003-0.016

0.0001-0.0006

• Piston Pin ClearanceMaximum

0.05

0.002

• Piston Pin Diameter

18.995-19.00

0.7479-0.7480

• Piston Pin Offset

0.5

0.002

• Piston-to-Cylinder Bore Clearance

0.02-0.04

0.0008-0.0015

• Piston Diameter Standard

74.97-74.480

2.9516-2.9523

• 0.25 mm (0.0098 inches) Oversize Piston

75.220-75.230

2.9514-2.9518

• 0.50 mm (0.0197inches) Oversize Piston

75.470-75.480

2.9712-2.9716

• Piston Ring End Gap Top Ring (Standard)

0.20-0.35

0.0079-0.0137

• Top Ring (Maximum Limit)

0.7

0.0275

• Lower Ring (Standard)

0.20-0.35

0.0070-0.0137

• Lower Ring (Maximum Limit)

0.7

0.0275

• Oil Ring (Standard)

0.2-0.7

0.0079-0.0275

• Oil Ring (Maximum Limit)

1.7

0.0669

• Piston Ring Groove Clearance Upper Compression Ring

0.03-0.07

0.0012-0.0027

• Lower Compression Ring

0.02-0.06

0.0008-0.0023

Rocker Arms

• Rocker Arm Clearance Standard

0.001-0.036

0.0001-0.0014

• Rocker Arm Inside Diameter

15.985-16.005

0.629-0.630

• Rocker Arm Shaft Runout Limit

0.20

0.008

• Rocker Arm Shaft Diameter

15.969-15.984

0.629-0.630

• Valves

• Valve Guide Inside Diameter

5.500-5.12

0.2166-0.2170

• Valve Head Thickness Intake Valves (Standard)

0.8-1.2

0.03-0.047

• Intake Valves (Minimum Limit)

0.6

0.024

• Exhaust Valves (Standard)

0.8-1.2

0.03-0.047

• Exhaust Valves (Minimum Limit)

0.7

0.027

• Valve Head Angles for Refinishing Area Above Seat Contact Surface

15 Degrees

• Seat Contact Surface

45 Degrees

• Valve Seating Contact Width Intake Valves

1.1-1.13

0.0433-0.0512

• Valve Stem Outside Diameter Intake Valves

5.465-5.480

0.2152-0.2157

• Exhaust Valves

5.440-5.445

0.2142-0.2148

• Valve Stem-to-Valve Guide Clearance Intake Valves (Standard)

0.0209-0.047

0.0008-0.0018

• Intake Valves (Maximum Limit)

0.070

0.0027

• Exhaust Valves (Standard)

0.045-0.072

0.0018-0.0028

• Exhaust Valves (Maximum Limit)

0.090

0.0035

• Valve Spring Free Length Standard

36.83

1.45

• Minimum Limit

35.67

1.4043

• Valve Spring Preload Standard

10.7-12.5 kg at 31.5 mm

23.6-27.5 lbs at 1.24 in

• Valve Spring Side Clearance (Maximum)

2.0

0.079

Valve Leash

• Intake Valve Cold Valve Lash

0.13-0.17

0.005-0.007

• Exhaust Valve Cold Valve Lash

0.13-0.17

0.005-0.007

• Intake Valve Hot Valve Lash

0.17-0.21

0.007-0.008

• Exhaust Valve Hot Valve Lash

0.17-0.21

0.007-0.008