Stock Magnum rods/pistons durability ?

150K+ Grand Cherokee 5.2L, freshened (rings/bearings/timing chain and tensioner) with a 270HR cam, M1 single plane and a 750 Holley ran countless low 8 second passes in the 1/8mi. and limited street duty for me in a Dart with 4.30:1 gears. Then I sold it to a guy who used it for his daily, and beat it on Thursday TnT Drag nights and bracket raced it Sunday afternoons for several years. He moved to Florida and offered it back to me and I bought it back. I drove it while I was prepping a solid lifter 11:1 360 with J-heads, etc. When I swapped the 360 in (it was only .7 quicker), I sold the 318 Mag to a bracket racer for use in a '65 Dart after installing a dual plane M1 and a 600 Holley. Zero problems with anything, period! They are extremely durable at modest power levels, especially N/A.