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Help! Head Bolt Size

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Old 04-29-08, 02:01 PM
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1siksc
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Default Help! Head Bolt Size

Head Bolt Size... does anyone know the size of the Hex "allen" bit for this???!! Thanks ohh and i did search for awhile no results.
Old 04-29-08, 02:26 PM
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Gunnar
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It's a 12-point, called a "bi-hex" or "triple square". Going off the advice I'd read on the forums I got a 10mm but it was too small, so I'm guessing it's a 12mm. (unless my 10mm was just packaged wrong and was really something smaller)

I used a 10mm allen head socket that I had from the bolts that connect the axles to the differential and it worked, but I would definitely suggest getting the right part to give yourself the most protection against stripping it.
Old 04-29-08, 02:35 PM
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1siksc
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ohh, im talking about the head bolts that bolt the head to the block.
Old 04-29-08, 03:00 PM
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So am I.
Old 04-29-08, 03:13 PM
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1siksc
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these.....
Old 04-29-08, 03:35 PM
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5sp_jzz30
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^^^^^those are not head bolts lol.

those are the plugs that go to cover the cylinder head. if you take it off it is only like half an inch thick and you will see into the head and oil will be there.

you have to take off the valve covers to see the head bolts.

what are you trying to do?
Old 04-29-08, 04:06 PM
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1siksc
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wow, im retarted! derr thanks!... ohh, im replaceing my head gasket.

Last edited by 1siksc; 04-29-08 at 08:01 PM.
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