Thread: newbie bbc owner in jetboat

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yes the 98515 spring and i concur with my esteemed colleague . MR J Clayton . yes boats are not USED the same as car engines . boats are hard on Valve train . i wish i could say i did not know not one thing about boats.... BUT i work at a boat yard one of the biggest in mich over two miles long.. EZ 6 boats a day i work on from 17 foot to very big $$$. even lot of the cheap valves are a mix of alloys some what S steel the new Sbc are very thin from chevy new and most of the time the stock intake valve can not be re ground less you need a new blade to shave your face with. they sure will pull threw the head but if the springs are weak the best valve can go to cup

ok so I am really confused now.........
I did some research and reading and come to find out that I have rotators on the exhaust springs side.... Do I ditch these or run them again? Do you ditch the rotators and run the antirotator with the springs previously mentioned in the earlier post?
Also, how do I figure out what correct spring rate I need or is that not critical in my case? If someone could direct me to the correct part, Id really appreciate it.