I've been reading about oil catch cans and wonder if they are necessary. My 93 SC 400 (NA) has 196,000 and runs great so do you think it could help prolong the life of my engine

 

Stick with OEM pcv system. Catch can only recommended when boosted

 

Every time I see your signature it makes me jealous to see what I'm I missing to get 5-600 hp in my na-t
post your engine up with your catch can please
nay pointers!!
thanks!!!

 

If you are concerned that you might need one, swap in a new PCV valve and buy one of those small oil catch cans and put it on the fresh air hose to the valve cover.

Here's an example of the small "catchcans" out there.
http://www.jegs.com/i/JEGS/555/52205...h5lBoCqjzw_wcB

It holds a little more than an ounce

If you find that your engine fills this up every couple days, then you should look into getting a larger catch can setup. Also, if this is the case, you're getting a lot of blowby and your motor is old and worn