I would pay the extra $$$ now to get an engine from a reputable source. You can get a jap-spec, JDM POS from any schmo, but a company like JARCO has an established reputation. I know of someone that has used one of these cheaper sources, and he received a POS. While these guys do offer a warranty, shipping costs are your responsibility. Your cheap JDM motor may soon cost more than JARCO.