Two 1969 383 blocks bought at an estate. Anyone looking for either one?

[Budgetmoparman]

Can anyone tell me what either of these 383s came out of? Is anyone looking for one of these blocks? I bought them from an estate sale, so I know nothing about them except that they are both cast in 69. Thanks for any info you can give.

 

[RustyRatRod]

Cast in 69 both are for the 70 model year.

 

[413]

Both are 2bbl engines out of C bodies 1970 model year. C and D assembly plants only build the big cars.

 

[BillGrissom]

Both are 2bbl engines out of C bodies 1970 model year. C and D assembly plants only build the big cars.

Does being 2 bbl change anything about the block or heads, or just the intake manifold? If just heads, there are aluminum after-market heads. At some time they changed from forged to cast-iron crankshafts (~1968?), but might have been for all engines. Forged is stronger, but many racers prefer cast-iron since lighter.