Engine Specifications
GENERAL SPECIFICATIONS
| Year |
DISPLACEMENT |
Fuel System |
HP@RPM |
Torque Ft. Lbs.@RPM |
Compr. Ratio |
BORE |
STROKE |
| Cu. In. |
Liters |
In. |
mm |
In. |
mm |
| 1982 |
234 |
3.8 |
Fuel Inj. |
155@4750 |
196@2750 |
8.3:1 |
3.46 |
88 |
3.11 |
78.9 |
VALVES
| Engine Size & Valve |
Head Diam. In. (mm) |
Face Angle |
Seat Angle |
Seat Width In. (mm) |
Stem Diameter In. (mm) |
Stem Clearance In. (mm) |
Valve Lift In. (mm) |
| 3.8L |
|
|
|
|
|
|
|
| |
Intake |
1.5433 (39.2) |
45° |
45° |
.051-.078 (1.3-2.0) |
.3523-.3531 (8.95-8.97) |
.003 (.075) |
..... |
| |
Exhaust |
1.4606 (37.1) |
45° |
45° |
.059-.079 (1.5-2.0) |
.3523-.3531 (8.94-8.96) |
.003 (.075) |
..... |
PISTONS, PINS, RINGS
| Engine |
PISTONS |
PINS |
RINGS |
| Clearance In. (mm) |
Piston Fit In. (mm) |
Rod Fit In. (mm) |
Ring No. |
End Gap In. (mm) |
Side Clearance In. (mm) |
| 3.8L |
.0008-.0012 (.020-.030) |
.0001-.0005 (.002-.012) |
.0003-.0007 (.007-.018) |
No. 1 |
.012-.018 (.30-.45) |
.002-.003 (.050-.080) |
| |
|
|
|
No. 2 |
.014-.022 (.35-.55) |
.0016-.0030 (.040-.070) |
| |
|
|
|
Oil |
.010-.016 (.25-.40) |
.0012-.0020 (.030-.060) |
CRANKSHAFT MAIN & CONNECTING ROD BEARINGS
| Engine |
MAIN BEARINGS |
CONNECTING ROD BEARINGS |
| Journal Diam. In. (mm) |
Clearance In. (mm) |
Thrust Bearing |
Crankshaft End Play In. (mm) |
Journal Diam. In. (mm) |
Clearance In. (mm) |
Side Play In. (mm) |
| 3.8L |
2.517-2.518 (63.95-63.96) |
.0012-.0028 (.045-.084) |
..... |
.004-.009 (.10-.24) |
2.045-2.046 (51.95-51.96) |
.001-.002 (.030-.060) |
.009-.015 (.220-.380) |
CAMSHAFT
| Engine |
Journal Diam. In. (mm) |
Clearance In. (mm) |
Lobe Lift In. (mm) |
| 3.8L |
|
|
|
| |
No. 1 |
1.376-1.377 (34.96-34.98) |
.001-.002 (.03-.06) |
..... |
| |
No. 2 & 3 |
1.935-1.936 (49.16-49.18) |
.001-.002 (.030-.060) |
..... |
| |
No. 4 & 5 |
1.943-1.944 (49.36-49.38) |
.001-.002 (.030-.060) |
..... |
VALVE SPRINGS
| Engine |
Free Length In. (mm) |
PRESSURE Lbs. @ In. (Kg @ mm) |
| Valve Closed |
Valve Open |
| 3.8L |
|
|
|
| |
Inner |
1.77 (45) |
24.7@1.3 (11.2@33) |
50.7@846 (23@21.5) |
| |
Outer |
1.95 (49.5) |
67.24@1.65 (30.5@42) |
194@1.2 (88@30.5) |
VALVE TIMING
| Engine |
INTAKE |
EXHAUST |
| Open (ATDC) |
Close (ABDC) |
Open (BBDC) |
Close (BTDC) |
| 3.8L |
16° |
15° |
16° |
17° |
TIGHTENING SPECIFICATIONS
| Application |
Ft. Lbs. (N.m) |
| Cylinder Head Bolts |
| |
Cold Step 1 |
22 (30) |
| |
Cold Step 2 |
44 (60) |
| |
Warm Step 3 |
44 (60) |
| Camshaft Bracket Bolts |
37 (50) |
| Camshaft Sprocket Bolts |
74 (100) |
| Connecting Rod Bolts |
33 (45) |
| Main Bearing Caps |
| |
Large Bolts |
72 (98) |
| |
Small Bolts |
47 (64) |
| Crankshaft Hub Bolt |
199-243 (270-330) |
| Oil Pressure Relief Valve |
29 (39) |
| Flywheel (Drive Plate) |
25 (35) |
| Hydraulic Valve Lifters |
36 (49) |
| Chain Tensioner Nut |
80 (109) |