This topic has come up in one of the classified sections, where an engine is being described as one builders engine, but it has been "freshened" by someone else. I wanted to start this thread to see if we can have a (civilized) discussion as to how one should describe their engine if they were to sell it.
As I pointed out in the above mention post, many, many engines become akin to "Washington's Axe" whereas everything has been changed so often, is it really still his ax?
To start off, I will provide my view. This is by no means gospel, rather a jumping off point to get the ball rolling. It is also not intended to become the mandatory way of selling an engine. Rather it will help new to the sport and veterans alike have a baseline for understanding an engine's lineage.
So here goes...
Engine One: This engines a purebred, having never been worked on, repaired, or rebuilt by anyone other than the original builder.
Engine Two: This engine has a traceable lineage and started out being built by XXX but the new owner uses YYY and has them go through it "top to bottom" changing items to their specific build standards. This could be recontouring the heads, using a different cam, or crank, reworking the carburetor, etc...By the end of this process, the new owner has a brand new YYY engine.
Engine Three: This is the preverbal "Mutt" Who know who's head it has, or who did the intake. It could have ZZZ head(s) re-done, by who knows how many different builders with XXX's bottomed and YYY's intake/carburetor....you get the point, it is a good donor motor to start your build by, your engine builder. This can never be a Purebred, but if gone through from "top to bottom" by your build and he performs all of his "tricks" it can become Engine Two.
So there's the start... Discuss, compare and contrast. Keep it civil and remember this is not a discussion on the merits of one builder over another, rather how you would classify an engine if you were to sell one.
Cheers,
Chris