I am going to look at a civic with an alleged JDM B18C Type R swap. How do I know if it is a gsr engine with a red JDM valve cover or the real deal? Does the GSR have duel valve springs like the type r? If it doesn't I figured I could pull the valve cover and see if there were duel springs or not. If anyone knows of any block or head stamps the would distinguish the two I would greatly apreciate it. I intend to purchase this car very soon, please help!! Thanks.