CRANKSHAFT CASTING NUMBERS: 387 6768 to 1408 8552

CASTING No.

YEAR

CID

STROKE

APPLICATION

NOTES

387 6768

387 6768

389 2690

389 2690

1964-67

1964-67

1967

1967-72

283

283

350

350

3.000

3.000

3.480

3.480

 


Truck

Camaro

Small Journal

Small Journal

Forged, Large Journal

Forged, Large Journal

389 2690

389 2690

391 1001

391 1001

391 1001

1969-85

1975-76

1968-69

1968-69

1968-73

350

350

327

327

307

3.480

3.48

3.250

3.25

3.25

Truck

Pass, Camaro, Corvette

Truck

Pass, Truck

Forged, Large Journal

Forged, Large Journal

Cast, Large Journal

Cast, Large Journal

Cast, Large Journal

393 2442

393 2442

393 2442

393 2442

394 1174

1968-81

1969-85

1976-85

1979-82

1968-69

350

350

305

267

327

3.480

3.480

3.480

3.480

3.250

Pass, Camaro

Truck

Pass, Truck

Pass, Truck

Cast, Large Journal

Cast, Large Journal

Cast, Large Journal

Cast, Large Journal

Cast, Large Journal

394 1174

394 1174

394 1178

394 1182

394 1182

1968-73

1968-73

1968-69

1969-85

1970

307

307

302

350

350

3.250

3.250

3.000

3.480

3.480

Pass

Truck

Z-28 Camaro

Truck

Z-28 Camaro

Cast, Large Journal

Cast, Large Journal

Forged, Large Journal

Forged, Large Journal

Forged, Large Journal

394 9847

395 1529

1408 8526

1408 8526

1408 8526

1964-67

1970-80

1985-89

1986-89

1986-89

283

400

305

350

305

3.000

3.750

3.480

3.480

3.480

 



Truck

Truck

Pass, Camaro

Small Journal

Cast

Cast, One Piece Seal

Cast, One Piece Seal

Cast, One Piece Seal

1408 8526

1408 8532



1987-89

1986-89

350

350

3.480

3.480

Camaro, Corvette

Truck

Cast, One Piece Seal

Forged, One Piece Seal

1408 8535

1408 8535

1408 8535

1408 8535

1408 8552

1985-89

1986-88

1986-89

1987-88

1986-88

305

350

305

350

350

3.480

3.480

3.480

3.480

3.480

Truck

Truck

Pass, Camaro, Malibu

Camaro, Corvette

One Piece Seal

One Piece Seal

One Piece Seal

One Piece Seal

Forged, One Piece Seal

Table 50.8

NOTE: Casting numbers on Small Block Chevrolets can be confusing. You may or may not find the complete casting number on a crankshaft. Some times only the last four digits are all that is on the crank so most people only refer to the last four digits when talking about a crank casting number.

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