Another perspective; my SPF was built in 2010 and has logged just over 26000 miles. I have experienced no mechanical problems and the engine (427sr/tw) does not burn or leak
oil. Needless to say I am very pleased with the power plant. However, should I ever replace it I will probably go with a Blykins engine. He is very available to discuss issues and make suggestions, and from what I have seen makes a damn fine engine at a reasonable price.