318 build up

Ive run them in stock;273s and early teeners.No problems. But those engines barely break 4500rpm.I think they would be strong enough in their original application.I guess think is not right cause the Chrysler engineers must have more than thought about it.I have to wonder though,why they later switched to the heavier rods.
And I would worry about them, when trying to put the coals to them. Id hate to find out, with a lousy tune.And since I regularly visit 7200,I left them in the box.
If you grab one of each, I dunno,That little rod just dont feel like it wants to go.I just dont have the spare cash to build a second motor if it does let go.
Then again, if you look at those teeny rods in the 5.7 hemis.....I nearly fell over laughing the first time I saw those.Guys seem to be putting some good pressure on them tho.........
I thought Id offer that info, in case the OP had options. I certainly wouldnt rush out to buy new rods just yet.
This is of course just my opinion.