Later 240sx models used engines of the KA24DE derivative which had double overhead cams and four valves per cylinder, as opposed to the KA24E’s three-valve SOHC setup. This resulted in higher power, torque, and redline figures. As far as used engines go, either one is a reliable starting point for your next swap.
Pick one of these crazy cheap cars up for your next autocross project for around $4,500, assuming you can actually find someone willing to sell. These cars are only getting harder to come by, and you can likely kiss any expectation of the car having under 200k on the clock goodbye.
Don’t gamble do a reseal. Plan on spending weekend and a few hundred dollars to pull the engine, take it apart, and have a look at what’s inside. You get peace of mind from having fresh gaskets, belts, and timing, and you can check out the internals.
Undeniably, one of the greatest hot cars of all time is the first model year of the Chevrolet Corvette. Granted, power numbers are nothing compared to the modern supercars we have listed so far, but this classic beauty is timeless. Cars with the original paint are easy to spot…they are all Polo White. Power comes from a 235 cu.in. inline-six. The 1953 Corvette features the Blue Flame version of this engine. The Blue Flame designation means that the engine features hydraulic lifters and produces 136 hp.