4.2 forged crank/ bore size

Bleed_Ford_Blue

Registered User
Im looking for a good forged or billet 4.2 crank, anyone know where to find such a thing.

also how much bore can you SAFELY get out of an sc block, ive seen alot of .40s how bout .50 or .60.

anyone know the formula for figuring displacement for a motor, Im wanting to figure the displacement with a 4.2 crank and a .40 , .50, and .60 bore.
Dan
 
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