What is the difference of Nissan 240sx and Nissan 180sx?
the Nissan 240sx in American markets was released with the ka24de... a dismal attempt of a performance engine. while in Japan Australia and other markets was released with the sr20de/sr20det, a MAGNIFICENT engine, easy power gains with bolt on modifications, and an aftermarket parts list that could fill a phone book, has proven it to be one of the best performance engines coming from Japan.
early models of the 180sx came with the ca18de/ca18det engines which are very popular too, but later models came out with the sr20det also.
the only notable difference would be the body and interior, but the chassis remains the same.