sbc question

can you guys tell me the difference between a passenger side dipstick and driver side dipstick im looking to replace my shortblock and a friend has a fresh 355 but it has the passenger side dipstick.besides the oil pan does everything interchange? like timing cover,cam,flexplate etc.. thanks guys by the way the engine im replacing is only 2 months old if any of you guys remember I had a fresh 355 built and to make a long story short it ingested a carb stud adapter did $500 worth of damage to my heads and cracked two of the cylinders just my luck!!!the new engine was a beast happened rite after i got a good tune on it1

They are the same, driverside dipstick is from the mid 80's