MODEL J382 G,K,LP
CYLINDER J382
| Type | Size | Maximum Taper | Above Block |
| Wet Sleeve | 4.502 | .008 | .004 |
| - | 4.500 | - | .0015 |
PISTON J382
| Pin Hole Diameter | Ring Groove Diameter | Ring Groove Width | Fit In Cylinder Bore | ||||||
| 1st | 2nd | 3rd | 4th | 1st | 2nd | 3rd | 4th | ||
| 1.500 | 4.086 | 4.086 | 4.086 | 4.047 | .129 | .128 | .128 | .253 | .003X1/2"Gage |
| 1.4998 | 4.076 | 4.076 | 4.076 | 4.037 | .128 | .127 | .127 | .252 | 5-10 lbs. |
| Diameter At Top Of Piston | Diameter At Bottom Of Piston | ||||||||
| A | AA | B | BB | C | A | AA | B | BB | C |
| 4.49595 | 4.49645 | 4.49695 | 4.49745 | 4.49795 | 4.4972 | 4.4977 | 4.4982 | 4.4987 | 4.4992 |
PISTON PIN J382
| Pin Diameter | Diameter Hole In Rod | Finished Bushing Diameter |
Pin Fit In Piston |
Clearance In Bushing |
|
|
Possible |
Desired |
||||
| 1.500 | 1.6249 | 1.5005 |
Lite Push Fit With Piston Heated To 160°F |
.0007 | .0005 |
| 1.4998 | 1.6239 | 1.5003 | .0003 | - | |
PISTON RINGS J382
| Type Of Ring | Groove Position | Width | Thickness | Gap Clear | Side Clear |
| Taper Face | 1 | .124 | .183 | .017 | .006 |
| Compression | .123 | .173 | .009 | .004 | |
| Taper Face | 2 | .124 | .183 | .023 | .005 |
| Compression | .123 | .173 | .013 | .003 | |
| Taper Face | 3 | .124 | .183 | .023 | .005 |
| Compression | .123 | .173 | .013 | .003 | |
| Ventilated | 4 | .249 | .183 | .020 | .0045 |
| Oil Control | .2485 | .173 | .010 | .003 |
VALVE GUIDE J382
| Outside Diameter | Stem Hole Diameter | Valve Seat Face To Top Of Guide | Valve Stem Clearance Limits |
Desired Stem Clearance |
||||
|
Intake |
Exhaust | Reamed | Intake | Exhaust | Intake | Exhaust | Intake | Exhaust |
| .752 | .752 | .4365 | 1 5/8 | 1 5/8 | .0021 | .0037 | .0015 | .0025 |
| .751 | .751 | .4360 | - | - | .0008 | .0019 | - | - |
INTAKE VALVE J382
| Stem Diameter | Maximum Stem Wear | Minimum Margin | Face Angle | Clearance Limits | Desired Clearance |
| .4352 | .002 | 1/32 | 30° | .0021 | .0015 |
| .4344 | - | - | - | .0008 | - |
EXHAUST VALVE J382
| Stem Diameter | Maximum Stem Wear | Minimum Margin | Face Angle | Clearance Limits | Desired Clearance |
| .4325 | .002 | 1/32 | 44° | .0037 | .0025 |
| .4315 | - | - | - | .0019 | - |
VALVE SEAT (INTAKE) J382
| Seat Angle | Seat Width | Stone Size | Narrow Stone | Stone Diameter |
| 30° | 3/32 | 30° | 15°-70° | 1 7/8 |
VALVE SEAT (EXHAUST) J382
| Seat Angle | Seat Width | Stone Size | Narrow Stone | Stone Diameter |
| 45° | 3/32 | 45° | 15°-70° | 1 3/4 |
VALVE SPRING J382
|
Free Length |
Valve Closed |
Valve Open |
||
| Spring Length | Spring Load | Spring Length | Spring Load | |
| 2 3/8 | 1 7/8 | 58-64 lbs. | 1.521 | 115-123 lbs. |
CAMSHAFT J382
|
Bearing Journal Diameter |
Tappet Hole Diameter |
Tappet Diameter |
Clearance Limits |
End Play |
||
| Front | Center | Rear | ||||
| 2.1225 | 1.7465 | 1.6840 | 1.0008 | .9985 | .0033 | .009 |
| 2.1220 | 1.7460 | 1.6835 | 1.0000 | .9975 | .0015 | .005 |
CAMSHAFT BEARINGS J382
|
Inside Diameter |
Clearance Limits |
Oil Pump Backlash |
||||
| 1 | 2 | 3 | 1 | 2 | 3 | |
| 2,1260 | 1.7465 | 1.6875 | .004 | .004 | .004 | .010 |
| 2.1250 | 1.749 | 1.6865 | .0025 | .0025 | .0025 | .008 |
CONNECTING ROD J382
|
Side Play |
Bearing Journal Size |
Bearing Clearance |
Desired Clearance |
|
| Possible | Desired | |||
| .0105 | .008 | 2.7495 | .0028 | .02 |
| .0065 | - | 2.7485 | .0008 | - |
CRANKSHAFT J382
|
Thrust On Front Main Bearing |
End Thrust |
Bearing Journal Size |
Bearing Clearance |
Desired Clearance |
Flywheel RunOut |
| .008 | 3.251 | .0027 | .0015 | .008 | |
| .005 | 3.250 | .0005 | - | - |
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