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

Mangled spark plug hole...fix???

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Old 10-08-2004, 11:40 PM
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BTM
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Mangled spark plug hole...fix???

I have a badly mangled spark plug hole that is far beyond just running a tap through to clean out the threads - already tried that. Anybody have any suggestions for repairing this?

I don't trust the cheesy tap & sleeve kits from Kragen/PepBoys/Fill-In-The-Blank...

FYI the heads are off the car so it wouldn't be hard to take to a machine shop. Motor is a 355 LT1 with only about 9:1 compression currently but will be getting a supercharger soon which will increase combustion pressures significantly, so the repair has to be strong. Don't want to launch a plug thru the fender !!

Thanx all,

Chris
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Old 10-09-2004, 07:15 AM
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Re: Mangled spark plug hole...fix???

take it to an auto machine shop, they should should be able to weld. drill and tap the hole, will be just like new
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