 Head rebuild advice for 103mm cut heads, Reweld or buy new, who's running 103? |
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| nditiz1 |
 Aug 22 2023, 07:36 PM
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#1
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Senior Member  Group: Members Posts: 1,202 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region 
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EDIT: Head is toast. Looking to source replacement ones. So I'm tearing into the FAT perfomance 2.6 engine. I was going to try to run it, but before that went to perform a leak down and saw a gaping hole in #4 next to the plug. I just removed the head and it looks good other than previous welding I assume FAT did when the built the heads. There is little material amount between the camber and the edge of the head due to the cut of 103 P&C. Is this just the evil of hipo engines or are better options out there? Should I have these rewelded OR buy new 103 cut heads? Who out there is running big power? Also I know Raby spoke highly about FAT engines, but damn did they love RTV.    |
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| technicalninja |
Aug 23 2023, 10:50 AM
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Senior Member Group: Members Posts: 1,951 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
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That's TOAST in my book.
Wow! that had FIRE shooting out of it... Those heads are "organ doners" for me and I'd be real nervous about the valves in the destroyed chamber. |
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Posts in this topic
nditiz1 Head rebuild advice for 103mm cut heads Aug 22 2023, 07:36 PM
Mikey914 I'd start with new metal. Only way to know for... Aug 22 2023, 10:42 PM Mikey914 Yes thermal failure “crystallizes “ that’s w... Aug 23 2023, 05:39 PM rhodyguy Does this mean the case was opened up for the 103 ... Aug 24 2023, 08:00 AM
nditiz1
Does this mean the case was opened up for the 103... Aug 24 2023, 10:58 AM Mikey914 Size is ok, add additional oil capacity with an of... Aug 24 2023, 01:02 PM porschetub
Size is ok, add additional oil capacity with an o... Aug 24 2023, 03:53 PM Mikey914
Size is ok, add additional oil capacity with an ... Aug 24 2023, 06:39 PM rhodyguy Buy an unaltered case. Aug 24 2023, 06:17 PM crash914 I have at least one set of 103 cut heads. A coupl... Aug 25 2023, 07:32 AM Al Meredith If I remember correctly Jake didn't like 103s ... Aug 25 2023, 08:59 AM nditiz1 Herb! I totally forgot how you love running th... Aug 25 2023, 12:07 PM |
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