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Old Jul 4, 2005 | 08:29 PM
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Default Need GM Part #

Hey guys, anyone know off the top of their head what the part # is for the hex bolt? I know what size it is (12X1.5P), but I can't find one with the right thread pitch anywhere. TIA.

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Old Jul 4, 2005 | 08:41 PM
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Home Depot doesnt have one? Odd, unless they are out, I got a hex bolt to replace the allen head one pictured above, same length and dia. just different means of fastening. Good luck if you dont find locally.

Charlie
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Old Jul 4, 2005 | 08:42 PM
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LS1 rear coolant bolts (on back of heads) = 11514008
https://ls1tech.com/forums/showpost....6&postcount=15
Hope that helps.
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Old Jul 4, 2005 | 10:10 PM
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Originally Posted by CAT3
Home Depot doesnt have one? Odd, unless they are out, I got a hex bolt to replace the allen head one pictured above, same length and dia. just different means of fastening. Good luck if you dont find locally.

Charlie
Did you find one with the correct thread pitch? I can find 1.25 and 1.75 thread pitch bolts, but none in the correct 1.5.

I'll bet if you got one at Home Depot it was the standard 1.75. I guess it may have threaded in, but you may have boogered up the threads in the head doing that.

Last edited by JF WS6; Jul 4, 2005 at 10:17 PM.
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Old Jul 4, 2005 | 10:19 PM
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Originally Posted by DWillTA
LS1 rear coolant bolts (on back of heads) = 11514008
https://ls1tech.com/forums/showpost....6&postcount=15
Hope that helps.
Thanks for the help, but I don't think that's the right one.... JMX has that part # listed as this:


Bolt 11514008 engine C5 Fbody GTO Throttle body to intake manifold bolt. 3 Needed. M6x1.0x30mm

I know that isn't the right size....
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Old Jul 4, 2005 | 10:24 PM
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I don't care where I get a bolt this size as long as I can get one. If anyone has a spare one around from a junk pair of heads I'll buy it....

Never thought I'd have such a hard time finding 1 stupid bolt.
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Old Jul 5, 2005 | 01:19 AM
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GM PArts Direct has them for 3.49. Part# 12553191

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Old Jul 5, 2005 | 10:34 AM
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Thanks for the info dude!
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