did u reuse the original h22a4 intake manifold or the the h23a intake? and what did u do for the crank sensor. did u put a h22a4 oil pump on the h23a engine? i really want to swap a h23a in my lude. it has 283,000 miles its tierd and burns alot of oil

no its an old hot rod trick the smoother the in side the block is the better oil return less heat

I've never heard of doing that. Are you talking about the mains?

did you polish the inside of the block for better oil return