I bought an engine off ebay that was supposed to have the big bore, cam, porting, etc. I have a stock engine on the floor to show for it!
Ebay did nothing to help me out and the cops did less! The engine did have good retainers and a webcam 63a. The rest was junk. The porting was so bad I can't even use it.
Be carefull about buying engines on ebay, People don't usually know what they have, might be the real deal but I would think someone would have taken better care of it if it where a Rickman