hi guys, i'm writing to you again, hoping to get a better answer. I blew my motor H22A4 in my 99 prelude base model, now i'm looking to put in a jdm H22A motor only, what do i need to keep from the original parts, and what new to get in order to run the motor. I was told i can keep all components from my car and just use the jdm head and block, but would need to change the oil pump. Which oil pump should i get, they are selling three different oil pumps. Please any help is welcome. Thanks again