BMW: e28 to e30, compaired, good question

Question
What about putting an engine from a 1983 533i into a 1984 328i?  Will it benefit you at all as far as HP?

Answer
Lance,
 Good question, however some of the info you gave me was faulty.  In 1984 there was no 328i, only 318i, or 325e.  The 328i was later in production.  That being said I will assume you made a typo and meant "318i".
 Yes you will see a benefit in HP and Torque.  I think that engine put out around 185HP, compaired to your current 100HP.  So yes, you will see a jump in horsepower, but I dont think it will be worth the headache.  That engine was VERY heavy, and what HP you gain will make the car very unbalanced when you go to steer it.

 Hope this helps,
 Josh