![]() Of course, you could swap the RB25DETT into the project if you don't mind one less turbo. ![]() On top of that, you'll need the rear-wheel-drive transmission that's usually sourced from Skylines using the RB25DETT engine unless you're prepared for an engineering nightmare. There's no other chassis it'll drop into easily and it's a straight-6 to make things even more awkward. Nissan's almighty GT-R engine is not a swap for the faint hearted or someone on a shoestring budget. There's not much that hasn't already been done with an LS, from generating a modest power boost to building viscous drag strip rippers of an engine. The big advantage comes with tuning and the aftermarket. Then, there's the usually huge addition of torque to the drivetrain that has to be accounted for. ![]() Just about every car you can think of has been LS swapped at this point, but the problem issue is usually the extra weight, particularly with cast iron-block engines. The other option for those with cash to burn is a brand new specialty crate engine for instant big power. Books have been written on the subject of variations of LS engines but, briefly, the 5.7-liter LS1 is the oldest and most adaptable and the 7.0L LS7 and LSX are going to bring the most power and complication before you get to the 6.2-liter supercharged LS9 from the Corvette ZR1. The LS line of V8 engines started in 1997 and featured in many GM cars including the Camaro, Impala, Cadillac's CTS-V, and so much more. There's a reason the LS swap is so ubiquitous in America. But what engine should you swap if you want the shortest distance to a big power increase? Well, these are the most common engines people like to use. For the most common swaps, there are kits out there to buy with plans and pre-fabricated parts that will make life a lot easier. And at this point, there's a lot of documentation out there on swapping particular engines and particular cars. Particularly if you keep it as simple as possible. That said, engine swaps are not impossible. Then there are the cooling and fuel systems to consider and if you're adding a lot more power then you need to make sure the whole drivetrain can take it. Complicated also usually means expensive, and things that have to be taken into account include cutting and fabrication, wiring, electronic control units, mating the transmission or installing a new one. ![]() It's a complicated proposition to put a modern engine into a modern car it wasn't designed for. It's generally not, and definitely not for the amateur mechanic. Browse any car forum or automotive based social site and you'll come across people talking about engine swaps as if it's something you can do in a weekend. ![]()
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