New for 2007! JBP Serpentine Pulleys!

Available in polished or machined finish. The most array of sizes on the market! From 2.3" to 3.9". Modular design and oodles of selection.

- Alternator Pulleys
- Supercharger Pulleys

and soon.....

The FIRST ever lightened crankshaft pulley for the LSJ!

Click here for details

 

How much for the crank pulley?

 

Should be priced out in 2 weeks.

 

Interested in the crank pulley, keep us updated with when its available.

 

I'm with you Dan...

 

JBP, what kind of gains can we expect from the lighter pulley, I know it will help to make the engine and everything work less/easier, but what kind of physical numbers could we expect or is that unknown at this point?

We should get another JBP Group Buy going on this .

 

not the first light weight pulley my man... this is one made already.. but that is information I am not at liberty to disclose

but nice

 

are the SC pulley's the same 5 bolt pattern as the one in the intense kits?

 

what will the crankshaft pulley do?

 

i thought i read some where taht we could not use underdrive type of pullys becase it would throw of the charteristcs of the supercharger and how the system works??? but i dont know? just somting i read on here but it would be a nice thing to have on some cars i have seen you can get up to 18 to 30% increase in power

 

The pulley should be the same diameter, just a lighter weight! So no characteristics of boost should be affected

 

cant wait until the crank pulley!

 

Yes, lighter. The diameter is the same as stock.

If they match the GM stage 2, then yes.

 

Gm stage 2 is a 4 bolt pattern. I thought you couldnt go lower then 2.8 on the gm hub..

 

Any updates on the crank pulley?