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richardndawnc
richardndawnc, ASE Certified Technician
Category: Chevy
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1968 chevrolet: 302 crankshaft numbers.Or any other caracteristics

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1968 chevrolet-302 crankshaft numbers.Or any other caracteristics besides journial size,and larger flyweight that started in 68.
Hi and Welcome, here are the small block crankshaft Casting number reference's
I hope they help --


Chevrolet Crankshaft Casting Number Reference
Small Block Chevy
Casting # CID Material Comments
1130 327 Steel Large Journal 3.25
1181 305-350 Cast Large Journal 3.48
2680 327 Steel Small Journal 3.25
2690 350 Steel ?
3279 302 Steel Large Journal 3.00 68-69 Z-28
4577 327 Steel Small Journal 3.25
4672 327 Steel Large Journal 3.25
310514 350 Cast 3.48
330550 350 Steel 3.48
354431 262 Cast Large Journal 3.10
(NNN) NNN-NNNN 283 Steel Small Journal 3.00
(NNN) NNN-NNNN 265 Steel Small Journal 3.00
(NNN) NNN-NNNN 327 Steel Small Journal 3.25
(NNN) NNN-NNNN 265-283 Steel Small Journal 3.00
(NNN) NNN-NNNN 283 Steel Small Journal 3.00
(NNN) NNN-NNNN 327 Steel Small Journal 3.25
(NNN) NNN-NNNN 327 Steel Small Journal 3.25
(NNN) NNN-NNNN 265-302 Steel Small Journal 3.00
(NNN) NNN-NNNN 283 Steel Small Journal 3.00
(NNN) NNN-NNNN 283 Steel Small Journal 3.00
(NNN) NNN-NNNN 283 Both Small Journal 3.00
(NNN) NNN-NNNN 283 Both Small Journal 3.00
(NNN) NNN-NNNN 283 Steel Small Journal 3.00
(NNN) NNN-NNNN 327 Steel Small Journal 3.25
(NNN) NNN-NNNN 350 Steel 3.48
(NNN) NNN-NNNN 307-327 Cast Large Journal 3.25
(NNN) NNN-NNNN 307-327 Cast Large Journal 3.25
(NNN) NNN-NNNN 327 Steel Large Journal 3.25
(NNN) NNN-NNNN 302 Steel Large Journal 3.00
(NNN) NNN-NNNN 305-350 Cast Large Journal 3.48
(NNN) NNN-NNNN 307-327 Cast Large Journal 3.25
(NNN) NNN-NNNN 302 Steel Large Journal 3.00
(NNN) NNN-NNNN 350 Steel Large Journal 3.48
(NNN) NNN-NNNN 350 Steel 3.48
(NNN) NNN-NNNN 283 Both Small Journal 3.00
(NNN) NNN-NNNN 327 Steel Large Journal 3.25
(NNN) NNN-NNNN 400 Cast Large Journal 3.76
Small block 1 pcs. rear seal below
14088526 305 Cast Large Journal 3.48 86-up
14088532 350 Forged Large Journal 3.48 86-88 Truck
14088535 305-350 Cast Large Journal 3.48 86-up
14088552 350 Forged Large Journal 3.48 86-88
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