Question on piston and rod balancing

I'm building a 1978 440 for my dart.
The block was in great shape with low milage so I'm reusing almost everything.
I did however swap out the stock pistons for a set of KB hypereutectic with valve relief.
But still using stock rods and crank.
I was so excited to get everything back from the machine shop I just started assembling.
I realized after everything was torqued down that I didn't weigh my rod/piston assemblies.
This motor isn't going to doing anything crazy just city driving...maybe the strip once or twice a year.
So my question is...

Do you think I'll be OK or will these new pistons **** everything up?