Hello, I'm building a motor for the first time and I already have some parts in mind. I'm going to go boost and want to produce around 500-600hp maybe a little over 600hp. So I have a b18c1 block, a b16 head. Now I want to get cp Pistons and Manley rods I'm going to bore to 81.5mm. I just don't know which rods to get it. Manley I beams or Manley H beams. Do I need the all out turbo tuff I beams for this type of build or am I ok with the h beams. Just wanting to see everyone else's opinions. This will be a street car not daily but mainly street. I'll be taking it to the track one in a while but just to try out not going to be a sport or anything like that.

 

H beams are fine for 600whp (if you wanted to you could just order a set of L19 or CA625+ rod bolts for added peace of mind)
The key thing you need to do is sleeve the block or get a CSS block as a minimum.

I run a CP & Eagle rod combo on my car making ~600whp. For 'insurance' I've got the upgraded CP pins (the middle option .200 IIRC) and L19 rod bolts.