Aluminum rods will certainly outlast "stock" rods. Aluminum rods are beefier becasue they don't have the strength characteristics of a steel rod of the same size. If you're going with a stroker, be careful that the rods don't hit the block. Big stokers sometimes require notches in the block for them to fit.
Personally, I'm going with forged H-beam rods that will outlast those aluminum rods. And, steel doesn't have the large thermal changes that aluminum rods do.
Venom_S
