no..extrude honing using clay under pressure
http://www.extrudehone.com/afmpro.html

 

Thanks guys, anyone else have any opinions...

 

would you be willing to send your heads to southeastern pa cause i kno a guy who does nascar and nhra heads and he is the best on the east coast

 

I'll send them pretty much anywhere in the northeast, even further if the price and quality of work meets my needs. Could you PM me his info and contact #, it wont be for a while til I aproach it but I am doing my homework and seeing how much money I'll need. Thanks, anyone else for machining....

 

Anyone else have heads/intakeextrude honed? If so let me know who, and how much, what were your results? Thanks

 

Extrudehone is by far the best for porting and polishing. Its pretty expensive and you gotta send your stuff to them, but teh results are awesome. They port the head and intake all at the same time, so theyre perfectly portmatched. Not to mentioin itll be the most consistant.
-P.

 

Thanks Zero... the more I hear about these guys the better they sound...

 

I have ported and polished my own heads. Have had one set Extrude Honed, and have had the rest of my heads C.N.C. ported. I know the numbers on the C.N.C. vs. Extrude are damn near identical. However, with C.N.C. porting they are utilyzing port and combustion chamber geometries that are impossible with abrasive media porting. My $.02.

 

thanks, I just found out what it'd cost for extrude honing ... damn expensive, upper/lower intake $790, pair of heads are $1330, that includes media porting, polishing, and gasket matching. Still thats a lot of money, how much does the CNC run? Where did you have the work done? Thanks madman!Which would you recommend between the two, why? Thanks