serpentine belt conversion

I found an underdrive serpentine pulley kit from summit for $51 but the water pump pulley is for reverse rotation (no grooves), can I run this in standard rotation or will it slip or fall off? There are kits with grooves but that adds another $120.
here's the kit
http://www.summitracing.com/parts/MCH-1000/
this ones $85 and has a shoulder at least http://www.summitracing.com/parts/ASP-520125/
I could use an opinion

 

THe second one will work. Have it on mine.

 

got any pic's

 

thanks for helping I just ordered the ASP kit

 

what about these one's

http://cgi.ebay.com/ebaymotors/FORD...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

http://cgi.ebay.com/ebaymotors/SERP...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

what belt are you using any part number

i orderd the set on ebay the $40 set

 

depends on the crank pulley, you might have to measure. ill check tomorrow.

 

Didnt you have overheating issues???

 

Nope, it just doesnt like antifreeze:16suspect


Had this setup on my car long before i bought it, 3 motors and 8+ years ago

 

my setup........

 

OK.

I got a good look at Derek5.0's set up last weekend. Same deal with the smooth water pump pulley. He says it doesnt slip and runs cool and if you guys have seen him shift I'm sure the belt isnt going to come off if it stays on his car. His are off a Crown Vic I think he said. Going to swap mine over when I get the alternator and electric fan finally installed.

 

Do you have any details on getting that power steering pump hooked up? Custom hoses?

 

(Reverse waterpump is needed with that setup)

 

Yup smooth waterpump pulley doesn't slip at all.Somethings goofy with my waterpump because took all pulleys off of 5.0 crown vic and put them on 5.0 in my Comet and the top and bottom pulleys hit.So thats why i went with the smooth mustang reverse pulley and it has worked flawless.Heres a old pic.

 

Thats just about my same setup, different waterpump pulley though.