Key point was cool. Seems to get big power from them etc.
Spoken to one guy with the motor (in a volvo) he said he had no issues with it.
But yeah I'm no expert.
Their is a fair few KE70s in europe with them, I ended up on some blog saw them.
I'm trying to find it again.
found one http://www.garaget.org/?car=88483
514whp @6300rpm and 644nm @5250rpm