How do you decode the vin on a block, since it does not have the full vin?

[Keith Litteken]

The 4 bolt main 429 CJ/SCJ blocks I have are stamped with these vin #  1Z580646 and 1G268468 on them.

Thanks,
Keith

[Bigfoot]

Maybe just stating the obvious but here we go.
1971 block

646 and 468 last 3 digits of VIN

[J_Speegle]

Pretty straight forward. For this engine and period you have

Year - Assembly plant (of the vehicle) - Sequential VIN

1G268468  = 1971- Chicago Il - Sequential VIN which also will identify model, body type and manufacturer (Ford, Lincoln, Mercury)

1Z580646 =  1971 -  St Louis Mo  - Sequential VIN which also will identify model, body type and manufacturer (Ford, Lincoln, Mercury)

[Keith Litteken]

Thanks for the help

[gt350hr]

   Keith ,
  Because of the assembly plants noted the cars were Torinos or Cyclones.

[Keith Litteken]

Thanks for the help.

[Side-Oilers]

Ranchero also at same ass'y plant?  I had a '70 Ranchero GT with 429. Fast & fun car/truck.

[gt350hr]

  Yes sir!