Here's one current example of a very well done Ford 5.0L V8. There are MANY
more.
http://www.haaspowerair.com/index.html

The FAA, and the legal system conspire to make selling these things an
unprofitable enterprise...but it can be done - even by an individual in his
garage...as proven thousands of times.



It has been, by many people. Many V-8's and V-6's are well past 2,000
hours, with no rebuilding necessary.

Orenda did it, and certified it, but designed their own V-8, but it is not
much different than GM V-8's.

It might be time to trot out the blog on how GM torture tests it's
engines, before a design goes into
production. I don't have the file handy, but perhaps someone else does.

Without the file handy, it is an easy jump to say that their duty cycles
and punishment make a certification test run look like child's play.

The problem with auto engine conversions is seldom the engine. It is
usually in the accessories, or the prop speed reducers. There are good
products out there for those, too. One has to only put them together.
--
Jim in NC