Mystery holes in rear of block - Team Camaro Tech
Tech 2002 General Tech questions from 2002
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post #1 of 5 (permalink) Old Aug 14th, 02, 12:25 PM Thread Starter
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Rick
 
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I am in the midst of putting in a new flywheel, etc and noticed two threaded holes that are about 1/8" on the top lip that the bell housing bolts to. There is one on each side, towards the outside edge, on top of that 'flange'. Being threaded, do they have a purpose? If I am explaining myself clearly, what are they for? I'd like to seal them so any oil leaks from the rear of the engine don't work their way inside the bellhousing.

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Rick Dorion
69 RS Conv,355,M20,4.10's and I don't worry about stone chips ( yet ).
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post #2 of 5 (permalink) Old Aug 14th, 02, 01:00 PM
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Don
 
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They were used for plug wire loom brackets.

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Don~ ZZ430DropTop
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post #3 of 5 (permalink) Old Aug 22nd, 02, 06:18 AM
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John
 
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The brackets were only used on engines with "ram's horn" style manifolds, but the holes were drilled/tapped in all blocks - they're 1/4"-20, and the larger hole just above them takes a locating tab on the loom bracket to keep it in position.

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JohnZ
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[This message has been edited by JohnZ (edited 08-22-2002).]
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post #4 of 5 (permalink) Old Aug 22nd, 02, 06:31 PM
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joseph l clance
 
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where can one purchase these Wire looms?
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post #5 of 5 (permalink) Old Aug 23rd, 02, 11:02 AM
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John
 
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All the Corvette resto parts houses have them (Corvette Central, Zip, Long Island Corvette Supply, etc.); Corvettes had "ram's horn" manifolds and ignition shielding, so they used them - Novas, Camaros, and Chevelles have the "log" manifolds and didn't use them.

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