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scartail last won the day on June 27

scartail had the most liked content!

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About scartail

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    Charlotte, NC

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  1. Guys, Did P90 heads come with steel/chromemoly valve seats from the factory? I was looking at rockauto and they have chrome moly seats listed, though out of stock. I thought ss or moly seats were an upgrade from stock brass. Thanks in advance!
  2. gorgeous build... it a bummer about the corvette that you sacraficed for the engine.
  3. i bit the bullet and bought a thread repair kit. it was a long shot to see if i could recover it. thanks for the suggestions.
  4. Hi, I orginally posted in another subforum, but did not get any response. Figure I was posted in the wrong subforum. There was a broken exhaust stud in the head. The break was recessed. I attempted to remove it with an extractor, and ended up breaking the extractor. I found website that described using a dremel and griding bit to grind through the extractor. I was able to do much of this. However, the reminisce of the stud/extractor still remains. To the best I could, I opened up the hole size for tapping M8. Still bits of steel remain. I used a magnet to detect the steel. Then I found a website that reference using battery acid to eat away the steel. I did this over several days. Still no, luck. As you can see, I only get rust. Any advice? I hope not to open up the hole further, then use an insert or helicoil. Someone out there must have a trick.
  5. Thanks, I was hedged my bet with bspt; being Japanese and all. Unfortunately, mcmaster carr only carried the lower profile ones. I ended ordering some thru ebay. And for anyone else that runs into this trouble... I measured the plug to be 1/2" pipe thread (assumed BPST) and 20mm thick.
  6. Thanks for the help guys. I'll browse mcmaster carr. I do think they are not straight threads, maybe pipe thread.
  7. Thanks guys. I screwed up, and wasn't paying attention... I ended taking one out, thinking it was a head screw, and stripped the socket head during the process. zcardepot doesn't carry them. They look the run of the mill. Are there anything special with them? BSPT?
  8. Thanks for responding. I stole this image of the zcardepot website. It's item 9 in the picture (not circled).
  9. Can someone tell me the name/pn of the steel threaded plugs in the head? There are 4 of them, near the cam. Require a 10mms Allen to remove. Thanks.
  10. thanks D9inger!!! that is one bueatiful engine.
  11. He wrote the book, so I think most will defer to his interpretation. I'm curious to see the contouring and transition he has done/directed. Any pix will be nice.
  12. hey d9inger, you have more pictures to share of the p&p? intake, exhaust? thanks.
  13. nice build. very clean. did you do the head p&p yourself?
  14. need help, and im not sure on the uniqueness of my dilemma, and im not sure of the proper category. i found a broken exhuast stud in my head (engine from the yard). in my absence of forethought, i drilled a hole and attempted to extract using an extractor. you know what, the extractor broke. so, i had a broken harden steel extractor in a broken steel stud in an aluminum head. i eventually grinded a hole with dremel. it's about a1/4" diameter hole. now im certained with retapping the hole. what are my options? grind (because some hardened steel might b left) the hole out to tap for helicoil? in retrospect, i should have welded something on and tried that. stupid of me. any advice? thanks.
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