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FE Power Forums => FE Technical Forum => Topic started by: Skeeter65 on April 26, 2021, 12:38:26 PM

Title: Pitting in Combustion Chamber
Post by: Skeeter65 on April 26, 2021, 12:38:26 PM
I saw a set of bare C8OE 6090-N heads for sale but they appear to have significant pitting in some of the combustion chambers. Are these salvageable and or worth putting work into vs a set of Trick FLows whenever they are back in stock?  They would be for a 445 build. Just looking at head options while I wait for my block to be machined.

(https://live.staticflickr.com/65535/51140602088_b495d60062_c.jpg) (https://flic.kr/p/2kV7XhL)2021-04-26_13-12-09 (https://flic.kr/p/2kV7XhL) by Jody Collins (https://www.flickr.com/photos/192859721@N03/), on Flickr
Title: Re: Pitting in Combustion Chamber
Post by: 1968galaxie on April 26, 2021, 01:25:10 PM
There has to be better condition heads available.
I would pass on those - even if free.
Those will need a lot of work.

Any of the aftermarket aluminum castings will be money well spent.
Title: Re: Pitting in Combustion Chamber
Post by: GerryP on April 26, 2021, 02:34:01 PM
If there's pitting on the valve seats, they're scrap.  If the seats are good, then you could run those.  The pits won't hurt anything.  People have experimented by dimpling the combustion chambers, and runners.  Golf ball theory.  If they're bare heads needing work, you might just want to go the aftermarket head route.  Sometimes you just have to pull the plug.
Title: Re: Pitting in Combustion Chamber
Post by: gt350hr on April 26, 2021, 02:40:34 PM
  Serious RUST , I would pass too.
Title: Re: Pitting in Combustion Chamber
Post by: Skeeter65 on April 26, 2021, 02:51:01 PM
That is what I was thinking as well. I thought they would be a good deal at $600 until I saw the pitting. Thanks for the input guys!
Title: Re: Pitting in Combustion Chamber
Post by: Joe-JDC on April 26, 2021, 09:15:41 PM
When porting a head with those pitting issues, I always find the rust goes deep, much deeper than needed to port the chamber or intake runner.  I would pass on them, personally.  Joe-JDC
Title: Re: Pitting in Combustion Chamber
Post by: Skeeter65 on April 27, 2021, 08:27:23 AM
Quote from: Joe-JDC on April 26, 2021, 09:15:41 PM
When porting a head with those pitting issues, I always find the rust goes deep, much deeper than needed to port the chamber or intake runner.  I would pass on them, personally.  Joe-JDC

Thanks Joe