[Rich-L79]

Looks like the only place that sells these is Competition Products but they look nice, certainly look well done and prices are reasonable. I'm considering a set (WP, crank 3-groove, PS, alternator) for my short water pump big block in the wagon. I assume I'll need new (longer) bolts for the WP and crank pullies but otherwise assume they will fit together well but I've never used these so who knows. These would move the fan a little closer to the radiator but I think I have the room for that.

Go here: Competition Products - Performance Engine Parts, Racing Engine Parts and Accessories
Then enter "billet pulley" in the product search box to see the pullies I'm talking about.

 

[SSJohn]

Don’t know about them, but looking at the prices I would suspect they are cast then machined, unless true billet aluminum is all of a sudden cheap. Also noticed they don’t state which alloy their “billets” are. “Manufactured of durable and corrosion resistant aluminum alloy”. Hmmmm....I’d wager that a cross section would reveal porosity.

 

[Rich-L79]

After doing a little more digging they look EXACTLY like the Spectre billet aluminum pullies so I'm assuming what CP is selling is a no-branded set from the same source. I've never gotten a bad product from Competition Products though they quite often sell rebranded or no brand versions at substantially better prices. And I'm okay with that. FWIW, Spectre also clearly lists their versions as being made from billet.

 

[shovelrick]

Billet "STYLE" would concern me, does look nice though, IIRC Mr 4speed was using CRV pulleys, Id check first to see if that is what he uses then check the web, I think he said it was a good pulley, from an older post though edit I think I posted the wrong name of CRV but something similar