Eagle SIR6123CB rods Vs stock.

Friend of mine did some weight/length comparison between a set of stock 440 rods and aftermarket (Scat, I believe). Aftermarket rods were lighter, weights were much more consistent, as were lengths.

That said, I have stock rods in all my motors, mostly because I rebuilt them before inexpensive aftermarket rods were available. None of them race motors, but are pretty fast street cars that have been driven hard. Never had a problem with the stock rods in any of them.

I did break a rod in a 440, though. I rebuilt the junkyard 440 in my Dad's 62 Dodge. Very high mileage, worn out motor - it used a quart of oil every 40 miles. So we bored it .030, new pistons, ground the crank, reconditioned the rods. This was my first motor to rebuild (back around 1980 or so), and it never occurred to me to replace the original rod bolts. Well, one of them broke one day when Dad was hauling ***, breaking the rod (or at least the rod cap), and ruining that cylinder. Have not re-used old rod bolts since.