496 supercharged - oil type?
 

I have a 496 ho with a whipple. I am running the stock pistons which I have read is the weak link. I would like to run the best oil I can with this set up. Do I run synthetic or the merc racing oil? What weight? I have heard royal purple xpr or amzoil racing oil would provide the best protection. Any advice on oil type or weight with this set up?

I had the same setup blew a piston. I would concern myself more with higher octane fuel and no more than 4 psi of boost. Any good quality multi weight if changed every twenty hours will work.

Bravo shops neo oil is suppose to be awesome, my next oil change will be done with it along with there gear oil! You can call them, awesom guys to deal with! .... The Bravo Shop - www.bravoshop.net, Your Source for Bmax, Bravo & Mercury Marine Outdrive Parts