Stock Rod Limitations?

At about what power level does it start to become necessary to use heavy duty forged I or H beam rods? I'm wondering how far I can push the stock bottom end in my 360 before I'll have to pull the engine to rebuild the bottom end. It's a fresh mild rebuild now that I'd like to build up a little more in the future.

if you figure out the cost of resizing and new rod bolts...then compare that to the cost of a set of scat I beams at 300 bucks....how much difference is there/

one thing that is not being discussed is weight...a stock 340/360 rod weights around 730 grams...a scat I beam will come in at 600 grams...

130 x 8 is 1020 grams...over 2 1/4 lbs of weight you will not be spinning...

and given the age of the rods....you don't know the complete history of the stock rods...how much abuse or overheating they have seen....how many times have they been resized..

i guess you never really expressed you intentions with the engine...daily driver...stay with the stock rods...going racing..i would spend a few extra bucks for the scat rods..

and the new rod gives you room to grow with.....

just looking at it from a difference point of view...