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Header bolts ?s

Discussion in 'The Garage' started by the beast, Jul 23, 2006.

  1. the beast

    the beast 1/2 ton status

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    How many of you have used the allen socket head header bolts for SBC's. Pro's? Con's? I've never used them, but I've never had a reason to either. But my latest POS has a problem with the bolts coming loose and backing out.
     
  2. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    pro:Easy to use.
    cons:age/heat/rust and they split when you try to loosen/tighten them.

    I use stage 8 locking fasteners on all of my headers. Tighten them once. period.
     
  3. obijuan

    obijuan 1/2 ton status GMOTM Winner

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    if you do use them some of the bolts you cant even get to with the allen head. so you just have to wrench them.
     
  4. stizkidz

    stizkidz 1/2 ton status

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    I just purchased these for my '88. They are junk. Stripped out on the first turn of the first bolt. Then again, I did buy the $5 set at Pep Boys... A wrench works just fine.
     
  5. zeroz400

    zeroz400 1/2 ton status

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    If you get allen head ones it would be a good idea to buy a allen socket that can be used at an angle. I use some 3/8" allen head bolts around the carb, its angled but with the tool i can turn em loose coming straight from the top.
     
  6. goldwing2000

    goldwing2000 Guest

    I use stainless allen head bolts in my headers. No problems whatsoever.

    I didn't buy them as some kind of kit, though. Just got the right size bolts from a bolt supplier and torqued them to the proper specification.

    Oh, and I used regular manifold gaskets, not those cheap-ass paper header gaskets.
     
  7. diesel4me

    diesel4me 1 ton status Premium Member

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    good luck...

    I put stainless steel studs in the exhaust manifolds of one truck I had--never again!..they didn't rust,but got so brittle they snapped like peanut brittle when I went to take the pipes off to change them!.:doah:

    I melted a bunch of drill bits trying to drill them out,and my torch couldn't melt them so I could blow them out either!--I ended up taking both manifolds off and taking them to work,so I could use an end mill in the milling machine to remove the broken off peices!..:mad: ..they seemed to "weld" themselves to the manifolds,they wouldn't just unscrew like a regular bolt would!..

    I am not sure what grade of stainless those studs were,but they were like tungsten!..I'll stick with grade 8 from now on,or even softer ones..at least they can be drilled or blown out with a torch!.--maybe the cylinder heads dont get as hot as the cast iron manifolds and you wont have any issues with stainless bolts..good luck!..:crazy:
     
  8. goldwing2000

    goldwing2000 Guest

    Sounds like either really crappy stainless or galvanic corrosion. I always use anti-sneeze on every bolt but especially when there are two dissimilar metals. I pulled the stainless bolts out of my headers when I removed the engine a couple months ago and they came out like buttah. :D

    They had been installed for about 6 years or so.
     

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