that there are many fully developed installation kits available from many suppliers,. It requires the least modification to the existing body shell,.There is no doubt that there are easier engines to fit into your 240Z than an RB26DETT, but it is also true that this is the engine that is most often used in engine transplants into 240Z’s. In fact, one of the first issues that must be addressed when contemplating an engine swap is the amount of body reinforcing that is required to prevent undue twisting and deformation of the frame under severe acceleration and cornering conditions. The fact is that the 240Z’s body shell was never designed to be able to cope with the vast amounts of horsepower and torque that any of the above engines are capable of developing. This of course raises the issue of which engine is more cost effective particularly given the fact that transplanting a heavy, high performance engine into a 240Z will only result in a light weight pocket-rocket with inadequate handling, steering, and braking characteristics, unless other, major and critically important modifications are carried out in conjunction with the engine transplant. Although it answered the needs of its time by providing adequate, though not brilliant handling, and by some standards, performance that was slightly above average, although this had more to do with its low overall weight than brilliant engine design, and the only real competition it had was from some Italian and German sports cars.Īll of the engines mentioned above are more powerful, fuel efficient and reliable than the 240Z’s original engine by several orders of magnitude. For instance, bear in mind that the 240Z was made in a different time. Nevertheless, swapping an engine involves a whole lot more than making it fit without having to cut into the bodywork. While the SR20 is a viable choice, the LS1 and 2JZ are very heavy, and require major structural modifications/reinforcing to work, although there are several known instances of these engines running in 240Z’s successfully. So, you have finally decided to breathe new life into your venerable old Nissan 240Z by doing an engine swap, but now the question is “Which engine is best?” There are several possible choices, such as the RB26DETT, the 2JZ in most of its variants, the SR20, or even the mighty V8 LS1, but the choice is made a lot more difficult by the fact that the engine bay of your 240Z will accept almost any engine.
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