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Modify head gasket for use on LZ22 or LZ24 conversions


spottedog

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Wish the gasket did work for my block. Wonder how Allens lz's turned out using this gasket.. that's alright I guess the l20b I have needs a gasket.

 

If he used it on a 89mm bore engine, the HG will fail. The question is when

My research has shown he doesn't know what he's talking about.,,,lol

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A little too tight?....all stock app HGs are set back from the cylinder wall

The Felpro HG for the 2.4L/89mm is 91ish (crushed)

 

Hopefully 'composite'.

 

 

TRUE!!!

 

It would maybe work at 89 but being back a mm or two would be best. This reduces the heat load on the folded edge of those fire rings.

 

Try wax paper between the boards and the composite gasket when clamping and drilling.

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The L, Z and KA series engines have the same bore spacing.  An 89mm Z24 gasket will work on an L20b, Z20 or Z22  bored to 89mm. Just beware of some Z series cheapo gaskets known as 'one size fits all'. Just snip the front off and fit the front off an old L gasket for around the timing chain area. It does not have to seal any water, oil or pressure just fumes and oil spray. RTV it and wipe off the excess.

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Try wax paper between the boards and the composite gasket when clamping and drilling.

 

Just have to use some hard board, GIS plywood, MDF/ranger board etc.

Something that is smooth and flat with no surface voids...also make sure the 2 pieces of the jig are clamped/screwed tightly together

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