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Difference between the years


waezsn

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Im not sure if this was posted or not yet. But what are the differences between the years? From the 240z - 260z - 280z. Anyone have a list of what the changes were? And why do the 240z seem to be priced the highest?

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In the US the cars evolved over time. Changes were made to reduce emissions and improve safety in crashes. The improved emissions led to lower performance as did the extra weight of bigger bumpers and body reinforcements. Because of these factors the engine displacement was increased from 2.4 liters to 2.6 liters for the 260Z in 1974 and to 2.8 liters for the 280Z in 1975. Despite the extra horsepower from the bigger engines performance wasn't quite up to the earlier standard which is a big reason why the earlier cars are more desirable. Another reason is that people like the appearance of the smaller bumpers even if they aren't as safe. There were many small refinements throughout the years, often in the middle of a model year. I don't know of a comprehensive list of changes for all years.

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Were the bumpers the only things that added the most weight? The engine I am not so worried about because I will be swapping it with a SR20det. So the bumpers and the engine were only the big difference? The chassis are all the same am I correct? Can the bumpers off the 240z be placed on the 280z?

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Im not sure if this was posted or not yet. But what...
Welcome to our site! This is one of the largest repositories of Z-car knowledge available anywhere, with over 13,000 registered users, but more importantly over 200,000 posts in over 24,000 threads. So in general, almost any question that you, as a new owner or owner to be might ask has already been addressed here. Most of them not once, but dozens of times. Your questions regarding differences between years, and also with retrofitting 240Z bumpers to a 280Z are examples of topics that have been discussed almost to death here.

Your best bet on these basics is to learn to use the excellent search feature here. Try searching with several different combinations of words and phrases, the amount of data you can find that way boggles the mind.

There are several reasons why you may get better results from a search than from a new post. For example, many of the long-time members get tired of answering the same questions over and over, so they may simply blow right past your questions. Also, many of the questions posted by new members concern items that are static. In other words, the answers to these questions don't change, they are still the same now as they were 5 or even 10 years ago. Your question on retrofitting bumpers is an excellent example of a static topic, as are putting 280Z engines in early cars, swapping to a 5 speed transmission, how to tune the early SU carbs, etc. The answers to these questions never change, so using a search there gives the advantage of seeing posts from many more people, rather than the few who might answer your question directly.

And why do the 240z seem to be priced the highest?
Simple economics. Supply and demand. The 240Zs are the oldest, and many have died from accidents and rust. So they are somewhat rare, yet are still in demand. So they are more expensive.
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