Serpentine belt question

[awest5321]

I need the part number for the serpentine belt to use on my Blue Print Engines setup. I have the complete system, A/C, PS, Alternator with the chrome bracket. I have included a picture. Trying to contact Blue Print but they have not responded yet.

 

[73azbronco]

you can run a string all way around, measure, measure width, measure grooves, look up charts online from most manufacturers, save receipt, take it back if it doesn't fit