70 Mach Numbers Matching Question

[magnoliamach1]

I would like to find a correct date coded 351C 4V engine for my 70 Mach 1.
The Marti states the following: Order received and Car Serialized 4/24/70, Bucked 4/28/70, Actually built and Released 5/1/70. What date range on the engine should I look for?

 

[SCJSTU]

I would think 60 days or less from your build date would do...

 

[RedGTvert]

I would think 60 days or less from your build date would do...

Agreed.