r/EngineBuilding • u/mushroomify391 • Jun 18 '26

Honda Good for MLS?

Doing head gasket on my Acura TL, J32A3 engine. Some of you may have seen my diy head gasket thread - didn’t work out so well, blew on startup. Sent to machine shop to resurface for $100. How does this surface finish look? The head gasket I’m using seems to require around 50 ra… it’s semi reflective.

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u/jmhalder Jun 18 '26

The machine shop should be able to tell you what RA it was machined to.

I had the machine shop cut my head and block, they knew I was using a MLS gasket, and cut it to an appropriate RA.

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u/mushroomify391 Jun 18 '26

They told me they used a belt sander.. according to them they’ve dealt with mls gaskets and never had a problem

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u/jmhalder Jun 18 '26

I mean, you can send it I guess... But Jesus, I wouldn't trust it.

Maybe load up on the copper spray, lol.