340 Rear Main Seal Install with Superformance Seal?

Blind Squirrel said

You spread a thin layer of sealant on the mating surfaces of the main cap? Definitely not a professional building practice. They are machined mating surfaces for a purpose. Ever hear of cap fretting?

Anyone building a motor at home please do your research and follow sound building information and practices, not keyboard samurai warrior's using youtube video's and harbor freight weapons of mass destruction. Do it right or do it twice.

Click to expand...

Oh please old wise one. Tell us more since you obviously think you are the master engine builder! Tell us how awesome you are! Go on!

And by the way, I took that advice from a builder who was the national record holder for several years in stock eliminator class. He built his own engines and countless for others. If you know **** about stock eliminator, you'll know how brutally tough that class is and what it takes to be at the top. Tell us, what national record have you held with engine building!?