Maybe, but those 440-6 rods are only .410" longer and a helluva lot stronger. The pistons will have a compression height shorter by the same amount so probably pretty close to a wash on balance but definitely needs to be checked. Pistons are available for stock stroke 383 with 440 rods. If you had a 440 crank to turn the mains and counter weights, Low deck 426 or 431 with a .030 overbore in a 383 wrapper. Good rod to stroke ratio and compression height for longevity. Just food for thought.