yup im 99% sure thats what im gonna invest in doing, and i wanna learn this shit a lil better so im gonna build it myself. Looking at b18b blocks and vtec heads on ebay, but the heads are what im worried about. how should i go about this stuff? should i try to buy one from a trusted ebay person thats in full working condition or would it be a plausible goal to buy one that looks ok and if its broken then fix it myself? and is it likely that there will be something wrong with the head that would make it unrepairable?