This about 04 engine failures. Mine was just replaced. I want to buy an extended warranty to cover me from this again. I can save $800 if I can go with Partial coverage vs. Bumper to bumper.
The partial coverage reads: "engine block and heads are covered if damaged by the Failure of an internally lubricated moving part."

The chamber seals are what are degrading right? So this is not an internally lubricated moving part?
Is there anything in the engine failures that can qualify under this wording?

I am checking warranty direct and seem reputable and reliable.
4yr (2012)/100k bumper to bumper is $2300. 4 yr/100k partial coverage is $1500.

you would be covered if the apex seals took a crap... not the chamber seal.... Get the bumper to bumper... that way if anything else takes a crap that isnt a "maintainence item" its covered as well

If you have an intake valving failure or something similar, it wouldn't be covered.
Neither would your transmission.

Really, extended warranties are a complete scam.
Just put the cash into a money market fund or something and add $100 or so a month to it and you will be properly self-insured.
A motor from a wrecking yard is only ~$2500 and another $1200 labor if you can't do it yourself.

extended warranties are a complete scam! A local here paid for it and it's been nothing but headaches for him when he needs work done.

Really, extended warranties are a complete scam.

Got that right. Need a lawyer to enforce coverage.

I agree. However a friend with a Boxster has had nothing but success with his - and LOTS of stuff has gone wrong from oil seals, new trans, ...

I think a lot depends on where you take it and such, Ive had to use my extended warrenty and it never gave me an issue

Mazda offers extended warranty, I think.

but I still wouldnt buy any extended warranty crap.