LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Water pump bolt size?

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Old Jan 19, 2004 | 10:43 PM
  #1  
Mr.Whitey's Avatar
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Water pump bolt size?

What size are the 6 bolts that hold the water pump housing to the block?
Thanks
Old Jan 19, 2004 | 10:46 PM
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3/8-16. They are different lengths if I can remember.
Old Jan 19, 2004 | 10:51 PM
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They are all 3/8 - 16 thread. Four of them are 4" long and two of them (one is a stud for the AIR pump bracket to fit over) are 2" long. Hmm... four 4's and two 2's...
Old Jan 19, 2004 | 11:13 PM
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Originally posted by shoebox
Hmm... four 4's and two 2's...
Nice use of word association. Even I can remember that.
Old Jan 20, 2004 | 06:19 AM
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Thanks Rob
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