I was looking a the procharger kit I bought and it has 8 rib pulleys so I took a look at my 502 today and its only 6 rib??? So do I need all new 8 rib pulleys?

Kit fits 98-00 502 mpi's and I thought my serpintine would of been 8 rib?

The prochargers use there own belt separate from the accessories so they will remain 6 rib and you will use a bottom pulley that is 6 rib for accessories and 8 or 12 to drive blower, sounds like you are missing the bottom pulley, Smitty

Haha you got it... I figured that's what they do...and I looked at a few pics and realized the crank pulley ran two belts one to the accessories and the other to the procharger

Thanks for clearing that up

Do you have a bottom pulley? I may still have a 454/502 mag 6/8 rib procharger crankshaft pulley left I would possibly sell, Smitty

sounds like you are missing the bottom pulley, Smitty

I do need one yes pm me a price