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FE Power Forums => FE Technical Forum => Topic started by: CDXXVII on May 10, 2012, 07:32:11 PM

Title: Head porting
Post by: CDXXVII on May 10, 2012, 07:32:11 PM

I got an old set of LR 427 heads cleaned up and I realized that the exhaust port floors have been cleaned up a little. Also smoothing is evident around the exhaust guides. Is it customary to rework the exhaust only?

Title: Re: Head porting
Post by: jayb on May 10, 2012, 07:57:29 PM

Just cleaning up the exhaust ports used to be a fairly common practice back in the '80s, around here at least.  I don't know if it was a widespread thing or not...

Title: Re: Head porting
Post by: hotrodfeguy on May 25, 2012, 09:19:37 PM

I tend to do both and back-cut the valves, the way I was told from Mike Ulrey "can't hurt"