I had my engine for about a year and half before I had it on the street. Bill had advised me on rotating the engine montly so that I did damage any of the valve train components with the spring pressure.Also advise on
pr-oiling the engine prior to start up. I was given instructions on the proper
oil to use and all the other info needed to breakin/maintain the engine.
Anyway to make a long story short I had an issue with the engie after 300 miles and Bill and Susan did whatever it took to make the engine right. They initially wanted to fly out their builder to handle the problem in the car but decided it best to have the engine sent back to them for a complete go over.Bill also was ready to drive the 20 or so hours to my place to pick up the car. They stood behind their build. They financially compensated me for removal and shipping of the engine. Sure I was not happy with the problem (cam journal
oil groove incorrectly ground) but they felt my pain and made it right. And I am confident that if anything else arose they would assist in any way. Very supportive, friendly. Never evasive or accusing. They stand behind their product.