The serial numbers from '54-'56 are different than the '40s and early '50s numbers (and '57-up changed again). Look for the engine serial number stamped on the pad to the rear of the distributor. If it's a '56 engine, you can check the suffix on this page.


Curt
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1953 Chevy 6400, 1957 Chevy 2dr Sedan
--"Mediocrity is easy, the good things take time"