Really there is nothing to them, there are a number of plumbing kits on the market for the oil lines now and as far as the bottom end goes it is best to try and pull the r/s ratio back a bit for the higher revs but you dont have to if you get a ecu chipped and run the correct rev limiter.

 

I suppose you could say there's "nothing to it," since the actual work is simple. But let's say you're starting with a well-used LS bottom end, say... 120,000 miles (that's being pretty conservative). Unless you rebuild it and break it in before you do the build, or your grandma owned the car, there is inevitably going to be some wear and tear at least on the bearings and collars. In short, running that bottom end into VTEC territory on a daily basis is not going to help matters, so even if you plumb it right, there's a significant chance your bottom end will come apart someday without warning.

 

That is true but IMHO even if a engine just has 50,000 miles on it if it is going from a daily driver running around town type of atmosphere to a performance/parts added to increase power type of atmosphere it needs to be rebuilt.

 

Oh, I agree. The first thing I do whenever I buy a car is rebuild the engine, regardless of how many miles are on it or what kind of maintainance has been done, because I know my formula, and I know it works.