502 spring pressure
#13
Registered
Well Gary, I don't believe I ever had a boat long enough to find their failure point. Typically I would have a boat 4-5 years and put 50-70 hrs per year on them. Camshafts would be in the .630 lift range. I would think that 300hrs would be a good point to check them.
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GLENAMY 242SS (09-30-2024)
#14
Registered
We're running 170lbs on the seat with 430lbs on stock 525 cams. Using johnson lifters. No issues.