S81P/eb-60 cylinder head bolt torque spec?

I can't find anything on the torque spec of the head bolts for my 1987 S81P. No clue if they are torque to yield, or just straight spec.

Anyone have info?

Thanks

 

Nothing came up in search, but I found the answer to my question in a document from the "daihatsu help" reference, the page was dead but I could view it through an archive.

40ft/lbs, so I assume it's not a torque to yeild.