Im going to dyno my engines this weekend I have weiand 177's w/ 10 rib. Stock they have 3.5in. pulley, anyone have any smaller ones I could rent or borrow just for dyno time??

3.5" made 3.5 psi at 6500 rpm looking to hit the 5.5 to 6 psi

I understand these are kinda spendy at $100 each, I have no problem sending someone money for them until I get done & return them to you. Simple paypal transaction & return + shipping ill cover.
~Thanks mike~

If you have the splined shaft, then PM jeff1000man. I sold him 1 or two a few years ago. I have the 2.85 and 3.10 pulleys that have a single keyway (automotive style) if thats what you need.

Thanks, Im 99% sure they are the keyway automotive style, ill call the builder & have him double check he has my chargers.

Ill send you a PM.

yes they should be the key way ones mike.

Yea they are, he called back today. Thanks

I can loan you the 3.10 pulley with keyway, not splines . The smaller pulley and belt is still on my motor. I have an intercooler so if you are not running one the belt lenghts will be different. PM your address. This may cost you some beers at Hotboat Weekend!

i have 2 4 5/8 merc blue crank pully's..sc 600 , their 10 rib..blower will spool up faster,,

A 4 5/8 bottom pulley will spin the top pulley on the SC even slower. It would only be overdriven about 45% instead of the standard 100% with the stock 7" lower pulley.

I have a new 2.66 but really want to sell it...

Thanks for all the replies!! PM's have been sent out.

Mrfixxall: I will measure the under pulley I have now & let you know. Thanks