| General Specification |
| Type | 60° V-6 Engine |
| Number of Cylinders | 6 |
| Displacement | |
| 3.3L | 3.3 Liters (201 cu. in.) |
| 3.8L | 3.8 Liters (231 cu. in.) |
| Bore | |
| 3.3L | 93.0 mm (3.66 in.) |
| 3.8L | 96.0 mm (3.779 in.) |
| Stroke | |
| 3.3L | 81.0 mm (3.188 in.) |
| 3.8L | 87.0 mm (3.425 in.) |
| Compression Ratio | |
| 3.3L | 9.35:1 |
| 3.8L | 9.6:1 |
| Firing Order | 1-2-3-4-5-6 |
| Cylinder Number (Front to Rear) | |
| Front Bank | 2,4,6 |
| Rear Bank | 1,3,5 |
| Compression Pressure - Minimum | 689.5 kPa (100 psi) |
| Max. Variation Between Cylinders | 25% |
| Cylinder Block |
| Cylinder Bore Diameter (Standard) | |
| 3.3L | 92.993 - 93.007 mm (3.661 - 3.6617 in.) |
| 3.8L | 95.993 - 96.007 mm (3.7792 - 3.780 in.) |
| Out-of-Round (Service Limits) | 0.076 mm (0.003 in.) |
| Taper (Service Limits) | 0.051 mm (0.002 in.) |
| Lifter Bore Diameter | 22.980 - 23.010 mm (0.905 - 0.906 in.) |
| Deck Surface Flatness (Max.) | 0.1 mm (0.004 in.) |
| Pistons |
| Piston Diameter | |
| 3.3L - Measured 39.8 mm (1.567 in.) from piston top | 92.968 - 92.998 mm (3.660 - 3.661 in.) |
| 3.8L - Measured 33.01 mm (1.30 in.) from piston top | 95.968 - 95.998 mm (3.778 - 3.779 in.) |
| Clearance in Bore @ Size Location (New) | 0.005 - 0.039 mm (-0.0002 - 0.0015 in.) |
| Weight | |
| 3.3L | 362 ±5 grams (12.77 ± 0.1764 oz.) |
| 3.8L | 426 ±5 grams (15.03 ± 0.1764 oz.) |
| Piston Pins |
| Type | Press Fit in Rod (Serviced as an Assembly) |
| Clearance in Piston @ 21°C(70°F) | 0.006 - 0.019 mm (0.0002 - 0.0007 in.) |
| Clearance in Connecting Rod | (Interference Fit) |
| Diameter | 22.87 - 22.88 mm (0.9007-0.9009 in.) |
| Length | |
| 3.3L | 67.25 - 67.75 mm (2.648 - 2.667 in.) |
| 3.8L | 71.25 - 71.75 (2.805-2.824 in.) |
| Piston Rings |
| Ring End Gap - Top Compression Ring | 0.18 - 0.38 mm (0.007 - 0.015 in.) |
| Wear Limit | 1.0 mm (0.039 in.) |
| Ring End Gap - 2nd Compression Ring | 0.28 - 0.57 mm (0.011 - 0.022 in.) |
| Wear Limit | 1.0 mm (0.039 in.) |
| Ring End Gap - Oil Control Steel Rails | 0.23 - 0.78 mm (0.009 - 0.030 in.) |
| Wear Limit | 1.88 mm (0.074 in.) |
| Ring Side Clearance - Top Compression Ring | |
| 3.3L | 0.030 - 0.080 mm (0.0012 - 0.0031 in.) |
| 3.8L | 0.030 - 0.069 mm (0.0012 - 0.0027 in.) |
| Wear Limit | 0.10 mm (0.004 in.) |
| Ring Side Clearance - 2nd Compression Ring | |
| 3.3L | 0.030 - 0.095 mm (0.0012-0.0037 in.) |
| 3.8L | 0.041 - 0.085 mm (0.0016 - 0.0033 in.) |
| Wear Limit | 0.13 mm (0.005 in.) |
| Ring Side Clearance - Oil Ring Pack | 0.039 - 0.200 mm (0.0015 - 0.0078 in.) |
| Wear Limit | 0.266 mm (0.009 in.) |
| Ring Width - Top Compression Ring | |
| 3.3L | 1.46 - 1.49 mm (0.0575 - 0.058 in.) |
| 3.8L | 1.175 - 1.190 mm (0.0462 - 0.0468 in.) |
| Ring Width - 2nd Compression Ring-3.3/3.8L | 1.46 - 1.49 mm (0.0575 - 0.058 in.) |
| Ring Width - Oil Ring (Steel Rails) | |
| 3.3L | 0.435 - 0.490 mm (0.017 - 0.019 in.) |
| 3.8L | 0.435 - 0.510 mm (0.017 - 0.020 in.) |
| Connecting Rod |
| Bearing Clearance | 0.019 - 0.065 mm (0.0008 - 0.0026 in.) |
| Wear Limit | 0.074 mm (0.003 in.) |
| Side Clearance | 0.13 - 0.32 mm (0.005 - 0.013 in.) |
| Wear Limit | 0.38 mm (0.015 in.) |
| Crankshaft |
| Material | Nodular Iron |
| Connecting Rod Journal Diameter | 57.979 - 58.005 mm (2.2827 - 2.2837 in.) |
| Main Bearing Journal Diameter | 63.993 - 64.013 mm (2.5194 - 2.5202 in.) |
| Journal Out-of-Round (Max.) | 0.025 mm (0.001 in.) |
| Journal Taper (Max.) | 0.025 mm (0.001 in.) |
| End Play | 0.09 - 0.24 mm (0.0036 - 0.0095 in.) |
| Wear Limit | 0.381 mm (0.015 in.) |
| Main Bearing Diametrical Clearance | |
| No. 1,2, 3, 4 | 0.011 - 0.055 mm (0.0005 - 0.0022 in.) |
| Wear Limit | 0.076 mm (0.003 in.) |
| Camshaft |
| Journal Diameter | |
| No.1 | 50.724 - 50.775 mm (1.997 - 1.999 in.) |
| No.2 | 50.317 - 50.368 mm (1.9809 - 1.9829 in.) |
| No.3 | 49.936 - 9.987 mm (1.9659 - 1.9679 in.) |
| No.4 | 49.530 - 9.581 mm (1.9499 - 1.9520 in.) |
| Bearing Clearance - Diametrical | 0.025 - 0.101 mm (0.001 - 0.004 in.) |
| Bearing Clearance (Max. allowable) | 0.127 mm (0.005 in.) |
| End Play | 0.254 - 0.508 mm (0.010 - 0.020 in.) |
| (Max. allowable) | 0.304 mm (0.012 in.) |
| Camshaft Bearing Diameter | |
| No. 1 | 50.800 - 50.825 mm (1.9999 - 2.0009 in.) |
| No. 2 | 50.393 - 50.419 mm (1.9839 - 1.9849 in.) |
| No. 3 | 50.013 - 50.038 mm (1.9690 - 1.9699 in.) |
| No.4 | 49.606 - 19.632 mm (1.9529 - 1.954 in.) |
| Exhaust Valve Timing | |
| Closes-3.3L (ATDC) | 13° |
| Closes-3.8L (ATDC) | 18° |
| Opens-3.3L (BBDC) | 43° |
| Opens-3.8L (BBDC) | 46° |
| Duration-3.3L | 236° |
| Duration-3.8L | 244° |
| Intake Valve Timing | |
| Closes-3.3L (ABDC | 52° |
| Closes-3.8L (ABDC | 63° |
| Opens-3.3L (ATDC) | 6° |
| Opens-3.8L (ATDC) | 1° |
| Duration-3.3L | 226° |
| Duration-3.8L | 242° |
| Valve Overlap-3.3L | 7° |
| Valve Overlap-3.8L | 17° |
| Lifters |
| Type | Hydraulic Roller |
| Diameter O.D. | 22.949 - 22.962 mm (0.903 - 0.904 in.) |
| Clearance In Block | 0.020 - 0.061 mm 0.0007 - 0.0024 in.) |
| Cylinder Head |
| Gasket Thickness (Compressed) | 0.65 - 0.75 mm (0.025 - 0.029 in.) |
| Valve Seat |
| Angle | 44.5 - 45° |
| Valve Seat Runout (Service Limits) | 0.0762 mm (0.003 in.) |
| Valve Seat Width - Intake & Exhaust | 1.50 - 2.00 mm (0.057 - 0.078 in.) |
| Valve Guide |
| Guide Bore Diameter (Std.) | 6.975 - 7.00 mm (0.274 - 0.275 in.) |
| Valves |
| Valve Lift (Zero Lash) - Intake & Exhaust | |
| 3.3L | 9.80 mm (0.385 in.) |
| 3.8L | 11.0 mm (0.433 in.) |
| Face Angle - Intake | 45 - 45.5° |
| Face Angle - Exhaust | 45 - 15.5° |
| Head Diameter - Intake | 47.87 - 18.13 mm (1.88 - 1.89 in.) |
| Head Diameter - Exhaust | 35.37 - 35.63 mm (1.39 - 1.40 in.) |
| Valve Margin |
| Intake | 0.825 - 0.973 mm (0.032 - 0.038 in.) |
| Exhaust | 1.565 - 1.713 mm (0.061 - 0.067 in.) |
| Valve Length (Overall) |
| Intake | 125.84 - 126.6 mm (4.95-4.98 in.) |
| Exhaust | 127.2 - 127.96 mm (5.00 - 5.04 in.) |
| Valve Stem Tip Height |
| Intake (valve tip to spring seat washer) | 48.1 - 9.7 mm (1.89 - 1.95 in.) |
| Exhaust (valve tip to spring seat washer) | 48.53 - 50.09 mm (1.91 - 1.97 in.) |
| Valve Stem Diameter |
| Intake (Standard) | 6.935 - 6.953 mm (0.2730 - 0.2737 in.) |
| Exhaust (Standard) | 6.906 - 6.924 mm (0.2718 - 0.2725 in.) |
| Valve Stem to Guide Clearance |
| Intake | 0.025 - 0.065 mm (0.001 - 0.0025 in.) |
| Max. Allowable (Rocking Method) | 0.247 mm (0.010 in.) |
| Exhaust | 0.059 - 0.094 mm (0.002 - 0.0037 in.) |
| Max. Allowable (Rocking Method) | 0.414 mm (0.016 in.) |
| Push Rods |
| Length | 135.438 mm (5.33 in.) |
| Valve Springs |
| Free Length (Approx.) | 51.4 mm (2.02 in.) |
| Wire Diameter | 3.95-4.77 mm (0.15 - 0.19 in.) |
| Number of Coils | 7.52 |
| Spring Tension (Valve Closed) | 376.4 - 24.4 N @41.9 mm (84.6 - 95.6 lbs. @ 1.65 in.) |
| Installed Height | 41.1 - 42.7 mm (1.61 - 1.68 in.) |
| Oil Pump |
| Clearance Over Rotors - Inner and Outer (Max.) | 0.10 mm (0.004 in.) |
| Cover Out-of-Flat (Max.) | 0.025 mm (0.001 in.) |
| Inner Rotor Thickness (Min.) | 7.64 mm (0.301 in.) |
| Outer Rotor Thickness (Min.) | 7.64 mm (0.301 in.) |
| Outer Rotor Clearance (Max.) | 0.039 mm (0.015 in.) |
| Outer Rotor Diameter (Min.) | 79.95 mm (3.148 in.) |
| Tip Clearance Between Rotors (Max.) | 0.20 mm (0.008 in.) |
| Oil Pressure |
| At Curb Idle Speed (1) (Minimum with engine at operating temperature) | 34.47 kPa (5 psi) |
| At 3000 RPM | 205 - 551 kPa (30 - 80 psi) |
| Oil Filter By-pas Valve Setting | 62 - 103 kPa (9 - 15 psi) |
| Oil Pressure Switch Actuating Pressure | 14 - 28 kPa (2 - 4 psi) |
| CAUTION: (1) If pressure is ZERO at curb idle, DO NOT run engine at 3000 RPM. |
