Ok here is whats going on, I was buying parts to build my F23 block, the rods which I just recieved are the same as the H23 and I have the chance to pick up a H23 block for like $100 than I can get it sleeved and then install the rods I have and get some pistons for it! Also can I use the F23 crank, then I would have like a 2.4 L.