92builtbird

I have a crankshaft in my small block chevy that I am dissasembling. The numbers read F (which i believe stands for june) 3951. Every search that I have tried comes up 3951xxxx. Some say that people commonly refer to the crank by the first 4 digits, but this could mean that the crank is a 327 crank, or a 400. Could somebody please help me out on this? Thanks

92builtbird

anyone?

ssduane

iTrader: (3)

3951130....327.......forged..medium journal...3.25" stroke
3951529....400.......cast....large journal....3.75" stroke

92builtbird

thanks man
I appretiate it alot!!