Thank you for straightening me out. I'm not familiar with Honda engines. If it really is pointless to swap out the engine I won't do it. I bought my ITR earlier this year, but haven't had time to modify it due to my job (I'm in the Navy, been out to sea on a submarine ) I just have the JDM conversion so it's all looks right now. After driving an ITR I've lost interest in muscle cars. My ITR just drives so much better, but I don't know a lot about them. As for Spoon, I've heard of them being 'the best' for Honda/Acura parts. While I never believed in 'the best,' I've noticed their parts are quite expensive, but not very cost-efficient for your average joe. So a Spoon, JDM, USDM B18C5 are essentially the same thing except for Spoon's taking apart and balancing of the components, and the JDM version just has higher compression pistons? Doesn't sound worth it to me! I've got buddies with WRX STIs and EVOs, but no one has an ITR! I'll stick to my ITR and use the extra money to modify it. Thanks for your help.