Stuart and John
Stuart wrote
Your bottom end is serviceable if it has less than 200,000 miles,

I have pulled alot of these 2.1 engines apart and measured the big ends
of the rods
they all shows signs of distortion even then the oil pessure was not a
problem
and as we know the 2.1 engine is famous for blowing rods threw the case]
I recomend doing the hole engine
I have an article that covers this om my web site its called low oil
pressure at warm idle
Bob Donalds
http://www.bostonengine.com