as the title says...How much do you think it would be to extra hone the gm manifold? one member Nuclear had it done but he got it done for free.

 

I'm wondering if anyone has done their own hone/port on a stock manifold and what they used to do it with, etc.

 

Im a machinest and I would say around 100-150$ depending on the shop.

 

i used to be a machinest as well...would be a pretty easy jbb with the right equpment

 

If I wanted a better job than GM offers. I would first go to a local machinist and have them hone out the narrowest points of your stock manifold.

I would then contact extrude hone and send them your manifold for finish honing and blending. The extrude hone process forces a viscous abrasive liquid through the manifold in the direction of exhaust flow, while traditional honing leaves hone marks radial to the flow.

Call the extrude hone location closest to you to get a price quote.

http://www.extrudehone.com/worldwide/location.php?c=usa

Personally, I would just get a header. For $199 you can't beat the CA stainless shorty for performance and value. I know you're not concerned about your warranty, as your cams already take care of that.

 

ah they don't care,funny though when a topic comes up about warrenty, my name is closely associated with it

 

As are JBP camshafts....

Anybody know about JBP camshaft install? Ask Mikey....