| GENERAL SPECIFICATIONS |
| Engine Type | 90° V-8 OHV |
| Bore and Stroke | 99.5 x 90.9 mm (3.91 x 3.58 in.) |
| Displacement | 5.7L (345 c.i.) |
| Compression Ratio | 9.6:1 |
| Firing Order | 1-8-1-3-6-5-7-2 |
| Lubrication | Pressure Feed - Full Flow Filtration |
| Cooling System | Liquid Cooled - Forced Circulation |
| Cylinder Block | Cast Iron |
| Cylinder Head | Aluminum |
| Crankshaft | Nodular Iron |
| Camshaft | Hollow assembled camshaft |
| Pistons | Aluminum Alloy w/strut |
| Connecting Rods | Powdered metal |
| CAMSHAFT |
| Bearing Journal Diamete | |
| No. 1 | 58.2 mm (2.29 in.) |
| No. 2 | 57.8 mm (2.27 in.) |
| No. 3 | 57.4 mm (2.26 in.) |
| No. 4 | 57.0 mm (2.24 in.) |
| No. 5 | 43.633 mm (1.72 in.) |
| Bearing to Journal Clearance Standard | |
| No. 1 | 0.040 - 0.080 mm (.0015-.003 in.) |
| No. 2 | 0.050 - 0.090 mm (0.0019 -.0035 in.) |
| No. 3 | 0.040 - 0.080 mm (.0015 -.003 in.) |
| No. 4 | 0.050 - 0.090 mm (0.0019 -.0035 in.) |
| No. 5 | 0.040 - 0.080 mm (.0015 -.003 in.) |
| Camshaft End Play | 0.080 - 0.290 mm (0.0031 - 0.0114 in.) |
| CONNECTING RODS |
| Piston Pin bore Diameter | 23.955 - 23.975 mm (0.9431 - 0.9438 in.) |
| Side Clearance | 0.10 - 0.35 mm (0.003 - 0.0137 in.) |
| CRANKSHAFT |
| Rod Journal | |
| Diameter | 53.992 - 54.008 mm (2.125 - 2.126 in.) |
| Out of Round (Max.) | 0.005 mm (0.0002 in.) |
| Taper (Max.) | 0.003 mm ( 0.0001 in.) |
| Bearing Clearance | 0.020 - 0.060 mm (0.0007 - 0.0023 in.) |
| Main Bearing Journal | |
| Diameter | 64.988 - 65.012 mm (2.5585 - 2.5595 in.) |
| Out of Round (Max.) | 0.005 mm (0.0002 in.) |
| Taper (Max.) | 0.003 mm (0.0001 in.) |
| Bearing Clearance | 0.023 - 0.051 mm (0.0009 - 0.002 in.) |
| Crankshaft End Play | 0.052 - 0.282 mm (0.002 - 0.011 in.) |
| Service Limit | 0.282 mm (0.011 in.) |
| CYLINDER BLOCK |
| Cylinder Bore | |
| Diameter | 99.50 - mm (3.917 - in.) |
| Out of Round (Max.) | 0.00762 - mm .0003 (in.) |
| Taper (Max.) | 0.0127 - mm 0005 ( in.) |
| Lifter Bore | |
| Diameter | 21.45 - 21.425 mm (0.8444 - 0.8435 in.) |
| CYLINDER HEAD AND VALVES |
| Valve Seat | |
| Angle | 44.50° - 45.00° |
| Runout (Max.) | 0.05 mm (0.0019 in.) |
| Width (Finish) | |
| Intake | 1.018 - 1.62 mm (0.0464 - 0.0637 in.) |
| Exhaust | 1.48 - 1.92 mm (0.0582 - 0.0755 in.) |
| Valves | |
| Face Angle | 45.0° - 45.5° |
| Head Diameter | |
| Intake | 50.67 mm - 50.93 mm (1.99 in.) - (2.00 in.) |
| Exhaust | 39.27 mm - 39.53 mm (1.54 in.) - (1.55 in.) |
| Length (Overall) | |
| Intake | 123.38 - 123.76 mm (4.857 in. - 4.872 in.) |
| Exhaust | 120.475-120.855 mm (4.743 in. - 4.758 in.) |
| Valve Lift (@ zero lash) | |
| Intake | 12 mm (0.472 in.) |
| Exhaust | 11.7 mm (0.460 in.) |
| Stem Diameter | |
| Intake | 7.935 - 7.953 mm (0.312 - 0.313 in.) |
| Exhaust | 7.905 - 7.925 mm (0.311 - 0.312 in.) |
| Guide Bore | 7.975 - 8.000 mm (0.313-0.314 on.) |
| Stem to Guide Clearance | |
| Intake | 0.022 - 0.065 mm (0.0008 - 0.0025 in.) |
| Exhaust | 0.050 - 0.095 mm (0.0019 - 0.0037 in.) |
| Valve Springs | |
| Spring Tension | |
| Valve closed | 422 N @ 46.0 mm (95 lbs. @ 1.81 in.) |
| Valve open | @ 33.5 mm |
| Number of Coils | 7.4 |
| Installed Height | 46.0 mm (1.81 in.) |
| Wire Diameter | 5.39 x 4.52 mm (0.212 - 0.177 in.) |
| HYDRAULIC TAPPETS |
| Body Diameter | 21.387 - 21.405 mm (0.8420 - 0.8427 in.) |
| Clearance (to bore) | 0.020 - 0.063 mm (0.0007 - 0.0024 in.) |
| Dry Lash | 3.0 mm (at the valve) (0.1181 in.) |
| OIL PRESSURE |
| Curb Idle (Min. (1) ) | 25 kPa ( 4 psi) |
| @ 3000 rpm | 170 - 758 kPa( 25 - 110 psi) |
| OIL PUMP |
| Clearance over Rotors (Max.) | .095 mm ( 0.0038 in.) |
| Outer Rotor to pump body | |
| Clearance (Max.) | 0.235 mm ( 0.009 in.) |
| Tip Clearance between Rotors (Max.) | .150 mm (0.006 in.) |
| PISTONS |
| Clearance at Top of Skirt measured at 45.0 mm (1.77 in.) below deck | 0.0215 - 0.0485 mm (0.0008 - 0.0019 in.) |
| Land Clearance (Diam.) | |
| Groove #1 | 0.6715 - 0.7105 mm (0.0264 - 0.0279 in.) |
| Groove #2 | .5455 - .6245 (0.0214 - 0.0245 in.) |
| Piston Length | 54.70 - 55.30 mm (2.153 - 2.177 in.) |
| Piston Ring Groove Width | |
| Groove #1 | 1.51 - 1.54 mm (0.0594 - 0.0606 in.) |
| Groove #2 | 1.51 - 1.53 mm (0.0594 - 0.0602 in.) |
| Groove #3 | 3.030 - 3.055 mm (0.1192 - 0.1202 in.) |
| Weight | 413 grams (14.56 oz.) |
| PISTON PINS |
| Clearance in Piston | 0.009 - 0.018 mm (0.00035 - 0.00070 in.) |
| Diameter | 24.0 - 24.003 mm (0.9448 - 0.9449 in.) |
| Length | 69.75 - 70.25 mm (2.74 - 2.76 in.) |
| PISTON RINGS |
| Ring Gap Compression Ring (Top) | 0.23 - 0.38 mm (0.0090 - 0.0149 in.) |
| Compression Ring (2nd) | 0.35 - 0.60 mm (0.0137 -0.0236 in.) |
| Oil Control (Steel Rails) | 0.15 - 0.66 mm (0.0059 - 0.0259 in.) |
| Ring Side Clearance | |
| Compression Rings | |
| Top | 0.02 - 0.068 mm (0.0007 - 0.0026 in.) |
| 2nd | 0.02 - 0.058 mm (0.0007 - 0.0022 in.) |
| Ring Width | |
| Compression rings | 1.472 - 1.490 mm (0.05795 - 0.0586 in.) |
| Oil Ring (Steel Rails) & Max. | 0.447 - 0.473 mm (0.0175 - 0.0186 in.) |
| VALVE TIMING |
| Exhaust Valve | |
| Closes (ATDC) | 27° |
| Opens (BTDC) | 233° |
| Intake Valve | |
| Closes (ATDC) | 253° |
| Opens (BTDC) | 7° |
| Valve Overlap | 34° |
| (1) If oil pressure is zero at curb idle, DO NOT RUN ENGINE. |
