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Old 06-13-2010, 03:50 PM
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Seized Bolt in Engine Block

I'm attempting to remove a bolt on a 327 engine (1964 GM) located on the side of the block. I've tried the strong arm approach, but no luck.
I've reviewed a few of the other posts regarding this issue but they were not directed related to an engine block.
Some of the suggestions are listed below, should I apply these same
techniques to bolds mounted on the engine block? I presume the heat of the oils/engine seized the bolt.

Thanks in advance...

1. heat up bolt, cool down, reheat, cool down, attempt to remove bolt.
2. easy out
3. PB blaster
4. Aerokroi

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Old 06-13-2010, 03:51 PM
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Where exactly is the bolt located?? Size of bolt??
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Old 06-13-2010, 05:07 PM
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Quote:
Originally Posted by ericnova72
Where exactly is the bolt located?? Size of bolt??
The bolt is located about 1" above the oil pan, center of block, driver's side.
I'm using a 9/16 socket to remove, the bold has not been stripped.
I need to use the hole to insert an after-market Dakota Digital oil pressure sender unit! Its the best spot on the block to support the device!
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Old 06-13-2010, 06:01 PM
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The only thing behind that hole is water.
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Old 06-13-2010, 06:04 PM
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Yep, only thing there is water.
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Old 06-13-2010, 06:08 PM
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The bolt at the location you're describing go's into the water jacket. It is used to drain coolant from the block. Sometimes a petcock is installed there to make it easier. Is there a bolt at the same location on the other side of the block? ooops, eric beat me to it....
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Old 06-13-2010, 06:08 PM
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The one you want is just above the oil filter. This is usually a plug with a recessed socket head. Very difficult to remove. I have had excellent results with Proto screw extractor #9525 3/8 " - no heat required.

Last edited by 406 bug; 06-13-2010 at 06:52 PM.
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Old 06-13-2010, 09:35 PM
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Follow-up

OK, I located another possible bold at the front on the engine right below the intake (Please See Pic), bolt is circled in green! Will this work for oil pressure reading??? Thanks....
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Old 06-13-2010, 09:47 PM
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Quote:
Originally Posted by 64Joker
OK, I located another possible bold at the front on the engine right below the intake (Please See Pic), bolt is circled in green! Will this work for oil pressure reading??? Thanks....
NO. Original sending location (next to disrb.) or the one mentioned in my previous post- THATS IT.
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Old 06-13-2010, 10:00 PM
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Quote:
Originally Posted by 64Joker
OK, I located another possible bold at the front on the engine right below the intake (Please See Pic), bolt is circled in green! Will this work for oil pressure reading??? Thanks....
Yes, that plug leads to the main oil galley, you can read pressure there. That hole is only present on blocks made prior to about 1973 or so IIRC, it is not on all blocks.
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Old 06-13-2010, 10:59 PM
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Plug Removed

Quote:
Originally Posted by ericnova72
Yes, that plug leads to the main oil galley, you can read pressure there. That hole is only present on blocks made prior to about 1973 or so IIRC, it is not on all blocks.
Ericnova72,

You are correct! The bolt was easy to remove and indeed was covered with oil! Whoo Hoo! Thanks a million.....
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Old 06-13-2010, 11:22 PM
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64joker,

Just to set the record straight. What you removed is a pipe plug not a bolt.

1/8 pipe plug.

Scholman
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Old 06-14-2010, 09:46 AM
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Quote:
Originally Posted by 64Joker
Ericnova72,

You are correct! The bolt was easy to remove and indeed was covered with oil! Whoo Hoo! Thanks a million.....
Sorry for the misinformation, Eric is right on!!!
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