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2006 Solstice (says hello). The engine overheated for some reason, going from ~200F to ~300F in a matter of seconds. (Actually, the gauge changed directly from 203F to 298F.) The head is over at the machine shop getting milled and a valve job. They said it was "pretty warped," but didn't say how much and it didn't occur to me to ask.

Now, obviously I need to check the block, as well, and I don't really want to pull the engine if it's not necessary.

This is a 2010 GM LE5 (Ecotec 2.4L) from a Malibu, aluminum block and head.

When checking with the straight edge and feeler gauge, how much variance is acceptable?

3Dave
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1 Answers1

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Longitudinal .002", Transverse .0012", Overall .004", Minimum deck height from the top of the main bearing journal to the deck is 7.4511" It's an interference motor...if modifications have been made to the valve train, pay close attention to your installed valve height of 1.2795. A decked block and a shaved head that was "pretty warped", with a stock head gasket could equal valve to piston contact in an interference motor, make sure you check...especially if reliefs are already cut into the piston.

Matthew Bossard
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