02sierraz71_5.3

iTrader: (2)

Has anyone had experience with using extrude honing to port heads?
Does it offer advantages over CnC porting?
Anyone have flow numbers on lsx style heads that have been extrude honed?

Ragtop 99

iTrader: (7)

I've seen extrudehoning used to polish, not to port. I haven't looked at it in a few years, but it was very expensive. I think your bang for the buck will be low with extrudehoning.

Bo White

iTrader: (59)

Extrude hone is good for a final process after porting but at $750+ for it its not a bang for the buck.

02sierraz71_5.3

iTrader: (2)

I was under the impression that it removed material and polishes at the same time. Id love to see some head numbers with this process, I know its popular with imports to pnp intakes, exhaust manifolds etc....

Brian Tooley Racing

iTrader: (13)

Extrude hone is great for intakes, especially with ports that can not be ported by hand. It is also good for smoothing like someone said. It is not a good process for head porting. There are areas in ports that need alot of material removal (like the guide area) and areas that don't need much removed (like the backside of the bowl). The guys that work at Extrude Hone have sent us their personal heads to CNC.