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Cylinder Block - Internal (Modified) fit your 1981 Ford F-250 8 Cyl 5.8L 4-Speed Manual Transmission
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1981 Ford F-250
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8 Cyl 5.8L; 4-Speed Manual TransmissionVehicle Options
8 Cyl 5.8L; 4-Speed Manual TransmissionCategories Close X
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Engine
- Camshaft Gear And Bearings
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- Cylinder Block - Internal (Modified)
- Cylinder Block - Internal (Windsor)
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- Emission Reduction System Engine Assy.
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- Oil Filler Pipe Installation
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Part No. & Part Description
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Part No. &
Part Description
Part Description
E6DZ-6700-A
SEAL (CYLINDER FRONT COVER OIL)Seal Assy - Crankshaft Oil - Front- Base Number: 6700
- Callout Name: 6700
$33.00 $23.171
- PULLEY IDENTIFICATION CHART
$173.33 $118.561 
- BOLT (CRANKSHAFT MAIN BEARING CAP)
D9HZ-6345-A
Bolt- Stud-3/8" - 16-1/2"-13 x 5"-hex shoulder- also attaches oil pump screen tube and cover assy.
- Base Number: 6345
- Callout Name: 6345
$34.42 $24.162 
C2OZ-6345-A
Bolt - Bearing Cap- 2/W/D , 7/16"-14 x 3 5/32"
4/W/D exc. No. 3 cap-R.H. side. , 7/16"-14 x 3 5/32"
7/16"-14 x 3 5/32" -hex. head-7/16" - Require Quantity: 13
- Package Quantity: 1
- Callout Name: 6345
- C6TZ-6345-C
Bolt - Bearing Cap - Hex. Head- 4/W/D No. 3 cap-R.H. side
Stud (attach oil pump screen to bearing cap)- 3/8"-16 x 7/16"-14 x 4 3/32" - Base Number: 6345
- Callout Name: 6345
-388907-S
SPROCKET (CRANKSHAFT)Key- (LL-17-A)-key (sprocket to crankshaft) , STANDARD PART
- Callout Name: 6306
- Replaced By: F6ZZ-6B316-A
$14.58 $10.246
- SCREEN, TUBE AND COVER ASSY. (OIL PUMP)
-382802-S2
Nut - Hex.- (MM-173-JB) - Nut (screen & tube to bearing cap)-3/8"-16 - Not replaced , STANDARD PART 4/W/D
(MM-173-JB)-nut (screen and tube to main brg cap) 3/8"-16-locking-Not replaced , STANDARD PART - Base Number: 382802-S2
- Callout Name: 6622
-34807-S8
Lockwasher- (X-66)-Washer-lock-3/8" , STANDARD PART
(X-66)-washer-3/8" , STANDARD PART - Base Number: 34807-S8
- Callout Name: 6622
- FLYWHEEL ASSY.
D5TZ-6375-A
Flywheel Assy- 164 tooth ring gear - (4) attaching holes on 11 13/32" bolt circle , C6
- Base Number: 6375
- Callout Name: 6375
$83.33 $57.001 - -378941-S7-8
No Description Available- (MM-169-H)-Nut (flywheel to converter)-3/8"-24 r/b 378941-S7 , STANDARD PART C6 A/T
(MM-169-H)-nut (flywheel to converter)-3/8"-24 , STANDARD PART C6
(MM-169-H)-nut (flywheel to converter)-3/8"-24 , STANDARD PART C6 A/T - Require Quantity: 4
- Package Quantity: 1
- Callout Name: 6375
- BEARING (CONNECTING ROD)
D9HZ-6211-A
Bearing - Connecting Rod- Standard-upper and lower-red
- Require Quantity: 16
- Package Quantity: 1
- Base Number: 6211
- Callout Name: 6211
$18.75 $13.731 
C2OZ-6211-R
Bearing - Connecting Rod- Std. Upper and lower
- Location: Upper And Lower
- Require Quantity: 16
- Package Quantity: 1
- Base Number: 6211
- Callout Name: 6211
- C9OZ-6211-A
Bearing - Connecting Rod- Standard-Upper & Lower
- Location: Upper And Lower
- Require Quantity: 16
- Package Quantity: 1
- Base Number: 6211
- Callout Name: 6211
E7AZ-6701-A
PACKING (CRANKSHAFT REAR)Seal Assy - Crankshaft Oil- r/b F1TZ 6701-A
- Base Number: 6701
- Callout Name: 6701
$40.58 $20.791
- VALVE (INTAKE)
E3ZZ-6507-A
Valve - Inlet- "Before 7/22/85" , Std.-stem dia.-.3418"
Std.-stem dia.-.3418" - Require Quantity: 8
- Package Quantity: 1
- Base Number: 6507
- Callout Name: 6507
$18.75 $13.731 - C5TZ-6507-A
Valve Intake Std- Std. Stem dia. - .3419"
- Require Quantity: 6
- Package Quantity: 1
- Callout Name: 6507
$0.00
- ROD (VALVE PUSH)
$18.75 $13.731 
- GEAR (CAMSHAFT)
E1TZ-6256-A
Sprocket - Camshaft- "From 5/1/81/" , Steel tooth gear-not interchangeable with phenolic tooth cam gear
- Callout Name: 6256
$57.58 $42.141 - D3TZ-6256-C
Sprocket - Camshaft- Kit - consists of phenolic tooth cam gear and crankshaft gear , refer to TSB 82-21-19
- Base Number: 6256
- Callout Name: 6256
D9HZ-6500-A
TAPPET ASSY. (VALVE)Tappet - Valve- Hydraulic
- Require Quantity: 12
- Package Quantity: 8
- Callout Name: 6500
- Replaced By: F1DZ-6500-A
$9.48 $6.108
- PUMP ASSY. (OIL)-34807-S8
Lockwasher- (X-66)-LOCKWASHER-3/8" , STANDARD PART
- Require Quantity: 2
- Package Quantity: 1
- Base Number: 34807-S8
- Callout Name: 6600
C2OZ-6600-A
Pump Assy - Oil- rotor type-hex. drive-incl. (1) ea. C2OZ 6626-C and C2OZ 6659-C gskts.
- Base Number: 6600
- Callout Name: 6600
-351418-S
HEAD (CYLINDER)Insert- (UU-136)-Insert (plugs for thermactor holes in head) - 5/8" - 11 x 7/16" - 14 x 1 1/8" , STANDARD PART
(UU-136)-Insert (reducer for thermactor holes in head)-5/8"-11 x 7/16"-14 x 1 1/8" , STANDARD PART
(UU-136)-insert(used in front and rear of cyl. head)-5/8"-11 O.D. thread x 7/16"-14 I.D. thread , STANDARD PART - Require Quantity: 4
- Package Quantity: 1
- Callout Name: 6049
-377850-S
DAMPER ASSY. (CRANKSHAFT)Bolt- (BB-273-A)-bolt (damper and washer to crankshaft). -hex hd.-5/8"-18 x 2" , STANDARD PART
(BB-273-A)-bolt (damper to crank)-hex. head-5/8"-18 x 2" , STANDARD PART - Base Number: 377850-S
- Callout Name: 6316
- BOLT (FLYWHEEL TO CRANKSHAFT)-378941-S7-8
No Description Available- (MM-169-H)-nut (flywheel to converter)-3/8"-24 , STANDARD PART C6 A/T
- Require Quantity: 4
- Package Quantity: 1
- Callout Name: 6379
D2AZ-6379-A
Bolt- 7/16"-20 x 1.06" hex hd.-r/b F1ZZ 6379-A
M/T, r/b F1ZZ 6379-A
M/T, r/b F1ZZ 6379-A 7/16"-20 x 1 1/16" - Require Quantity: 6
- Package Quantity: 1
- Callout Name: 6379
- Replaced By: F1ZZ-6379-A
D2AZ-6379-B
Bolt - Hex.Head- 7/16"-20 x 23/32" , A/T
7/16"-20 x 23/32" used without 6A366 plate , A/T
7/16"-20 x 3/4" , A/T - Require Quantity: 6
- Package Quantity: 1
- Base Number: 6379
- Callout Name: 6379
- ECCENTRIC (CAMSHAFT FUEL PUMP DRIVE)-43002-S
Bolt 3/8-16 X 1.50- (B-257)-bolt (eccentric to cam)-3/8"-16 x 1/2" , STANDARD PART
- Callout Name: 6287
- -43002-S
SPROCKET (CAMSHAFT)Bolt 3/8-16 X 1.50- (B-257)-Bolt(sprocket to cam)-3/8"-16 x 1 1/2" , STANDARD PART
- Callout Name: 6256
7HA-6518-A
KEY (VALVE SPRING RETAINER)Key- Exhaust & intake
Intake and exhaust - Require Quantity: 24
- Package Quantity: 1
- Base Number: 6518
- Callout Name: 6518
$0.00- Exhaust & intake
- BEARING (CAMSHAFT FRONT)
C2OZ-6262-A
BEARING (CAMSHAFT CENTER)Bearing - Camshaft- STANDARD
Std. I.D. & O.D.
std. I.D & O.D - Callout Name: 6262
- STANDARD
C2OZ-6267-A
BEARING (CAMSHAFT FRONT INTERMEDIATE)Bearing - Camshaft- STANDARD
Std. I.D. & O.D. - Callout Name: 6267
- STANDARD
C2OZ-6270-A
BEARING (CAMSHAFT REAR INTERMEDIATE)Bearing - Camshaft- STANDARD
Std. I.D. & O.D. - Callout Name: 6270
- STANDARD
C2OZ-6278-A
WASHER (CAMSHAFT SPROCKET)Washer- 13/32" I.D. x 1 3/16" O.D. x 7/32" thick r/b F3SZ-A
r/b F3SZ 6278-A
r/b F3SZ 6278-A 13/32" I.D. x 1 3/16" O.D. x 7/32" thick - Callout Name: 6278
- Replaced By: F3SZ-6278-A
C3AZ-6148-F
RING SET (PISTON PARTIAL)Kit - Piston Ring- STANDARD
- Require Quantity: 3
- Package Quantity: 1
- Base Number: 6148
- Callout Name: 6148
C3AZ-6337-AF
BEARING (CRANKSHAFT MAIN)Bearing Main- Size O.D.: Std. Size I.D.: .030" LOWER CENTER
- Location: Lower Center
- Callout Name: 6337
- BEARING (CRANKSHAFT MAIN)C3AZ-6337-AF
Bearing Main- Size O.D.: Std. Size I.D.: .030" LOWER CENTER
- Location: Lower Center
- Callout Name: 6333
C5TZ-6333-AC
Bearing - Crankshaft Main- Size O.D.: Std. Size I.D.: .002" U/S LOWER CENTER
Size O.D.: Std. Size I.D.: .002" U/S LOWER FRONT
Size O.D.: Std. Size I.D.: .002" U/S LOWER FRONT INTERMEDIATE
Size O.D.: Std. Size I.D.: .002" U/S LOWER REAR
Size O.D.: Std. Size I.D.: .002" U/S LOWER REAR INTERMEDIATE - Location: Lower Center
Lower Front
Lower Rear - Callout Name: 6333
D4FZ-6333-A
Bearing - Crankshaft Main- Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER CENTER
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER FRONT
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER FRONT INTERMEDIATE
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER REAR
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER REAR INTERMEDIATE - Location: Upper Center
Upper Front
Upper Rear - Base Number: 6333
- Callout Name: 6333
- D4FZ-6337-A
Bearing - Crankshaft Main Thrust- Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER REAR INTERMEDIATE
- Callout Name: 6333
- D4FZ-6337-B
Bearing - Crankshaft- Size O.D.: Std. "Before 7/12/83" Size I.D.: .001" U/S UPPER REAR INTERMEDIATE
- Callout Name: 6333
- D4FZ-6337-G
Bearing-Crankshaft Mn Thr-Lw- Size O.D.: Std. Size I.D.: Std. LOWER REAR INTERMEDIATE
- Callout Name: 6333
D4FZ-6337-H
Bearing - Crankshaft- Size O.D.: Std. Size I.D.: .001" U/S LOWER REAR INTERMEDIATE
- Callout Name: 6333
- NUT (CONNECTING ROD)
C3DZ-6212-A
Nut - Hex.- 5/16"-24 hex. chamfered
- Require Quantity: 16
- Package Quantity: 1
- Base Number: 6212
- Callout Name: 6212
C9AZ-6212-B
Nut - Hex.- 3/8"-24 HEX. (Also used to attach exhaust manifold to intake manifold)
hex-3/8"-24
hex. 3/8"-24
hex.-3/8"-24 - Require Quantity: 13
- Package Quantity: 1
- Callout Name: 6212
- PLATE (CAMSHAFT THRUST)
- C8SZ-6269-A
Plate - Camshaft Thrust- 1 3/4" I.D. x 2 19/32" O.D.
PLATE (CAMSHAFT THRUST) - Base Number: 6269
- Callout Name: 6269
- ARM (VALVE ROCKER)
$0.00 - D8AZ-6564-B
Arm Assy - Valve Rocker- Stamped steel type
- Require Quantity: 16
- Package Quantity: 1
- Callout Name: 6564
- SHAFT ASSY. (OIL PUMP INTERMEDIATE)
D2TZ-7007-A
PLATE ASSY. (ENGINE REAR)Plate - Cylinder Block Rear- TRANS:AOT #D2TE 6A373-AA,E7AE-AA, E8TE 6A372-AA
TRANS:C4 #D2TE 6A373-AA,E7AE-AA, E8TE 6A372-AA
TRANS:C6 #D2TE 6A373-AA,E7AE-AA, E8TE 6A372-AA - Callout Name: 7007
$0.00
D3AZ-6A527-A
BOLT (VALVE ROCKER ARM SUPPORT)Screw- 5/16"-18 x 1 3/8"
Hex. hd-5/16"-18 x 1 3/8" - Require Quantity: 16
- Package Quantity: 1
- Base Number: 6A527
- Callout Name: 6A527
- 5/16"-18 x 1 3/8"
- RETAINER (VALVE SPRING)
D3OZ-6514-A
Retainer Assembly-Valve Spr- Exhaust
Exhaust (Rotator) - Require Quantity: 8
- Package Quantity: 1
- Base Number: 6514
- Callout Name: 6514
- Exhaust
D4AZ-6514-A
Retainer - Valve Spring- Intake
Intake-r/b F1ZZ 6514-A - Require Quantity: 8
- Package Quantity: 1
- Callout Name: 6514
- Replaced By: F1ZZ-6514-A
- Intake
- D9TZ-6514-A
Retainer - Valve Spring- "From Ser. GJ0,001" , Exhaust-rotator type
- Require Quantity: 6
- Package Quantity: 1
- Callout Name: 6514
D5OZ-6513-A
SPRING (VALVE)Spring - Valve- Exhaust
- Require Quantity: 8
- Package Quantity: 1
- Base Number: 6513
- Callout Name: 6513
$0.00
D8AZ-6A527-A
BOLT (VALVE ROCKER ARM)Screw- 5/16" -18 x 1 3/8"-bolt, use with stamped steel rocker arm
5/16"-18 x 1.40" - Require Quantity: 16
- Package Quantity: 1
- Base Number: 6A527
- Callout Name: 6A527
D9TZ-6316-C
DAMPER ASSY. (CRANKSHAFT)-also refer to pulley I.D. Chart, section 60, page 5.Pulley - With Vibration Damper- Base Number: 6316
- Callout Name: 6316
E4AZ-6505-A
VALVE (EXHAUST)Valve - Exhaust- Std.-stem dia.-.3414" , Use with stamped steel rocker arm
- Require Quantity: 8
- Package Quantity: 1
- Callout Name: 6505
- PISTON ASSY. (INCL. PIN)
E4TZ-6108-P
Piston And Pin Assy- STANDARD , STANDARD PART Canada leaded fuel"Before 7/23/84"
over 8500 GVW "Before 7/23/84" , STANDARD - Require Quantity: 6
- Package Quantity: 1
- Callout Name: 6108
E53Z-6A528-A
SEAT (VALVE ROCKER ARM)Seat - Valve Rocker Arm Fulcrum- Require Quantity: 16
- Package Quantity: 1
- Base Number: 6A528
- Callout Name: 6A528
E6TZ-6701-A
SEAL (CRANKSHAFT REAR)Seal Assy - Crankshaft Oil- Require Quantity: 2
- Package Quantity: 1
- Base Number: 6701
- Callout Name: 6701
E8AZ-6200-A
ROD ASSY. (CONNECTING)Rod - Connecting- r/b F0AZ 6200-A
- Require Quantity: 8
- Package Quantity: 1
- Callout Name: 6200
Genuine Ford Parts, the Right Choice
FordPartsGiant.com offers the wholesale prices for genuine 1981 Ford F-250 parts. Parts like Cylinder Block - Internal (Modified) are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.8L. Transmission: 4MT.