LT1-LT4 Modifications 1993-97 Gen II Small Block V8

steam pipe?

Old 08-11-2012, 02:28 PM
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Default steam pipe?

can the steam pipe holes in the back of the heads be plugged without any cooling system issues?
Old 08-11-2012, 04:23 PM
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Absolutely not.
Old 08-11-2012, 04:44 PM
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If you plug them, any tiny air pockets will likely rest there and the back two cylinder heads will have hot spots. Could be catastrophic over time.
Old 08-12-2012, 11:31 AM
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If you need to get a new one you can fab it from some AN fittings.


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