[Thunder18]

the HLA's are larger also. I hear that there are some other smaller changes. When I purchased my new engine, I got all the new "good" stuff...

That's interesting, I would imagine that bigger HLA's would slow down the drivetrain. I was doing some reading up on the KL V6 in the 2nd gen and Mazda intentionally used the smallest HLA's they could in order to let the engine move faster. Of course, we know the problems with small HLA's...they are more prone to getting dirty/clogged and then you get the HLA ticking