C6 Corvette. LS2 or LS3?
Stock for stock they are close with the edge going to the ls3 obviously
But on all out H/C/I builds they are pretty close actually
Maybe 10-20 hp difference from my research when I had my c6 ls2
You can also throw some ls3 heads on the ls2 for a more budget head choice
The good thing about the more expensive LS3 cars is that it will take less money to make the same kind of numbers as an LS2 car.
However as mentioned, LS2 cars are cheaper overall and that money could easily be spent on more power. Son in the end, an LS2 car will probably be cheaper to get to X amount of HP when you consider the base price of the car + modifications.
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Since the LS3 came out, people have been ******* the LS2 even though it is just as capable of a motor as the LS3. Other improvements to the C6 chassis were made in the 08-13 Corvettes, but if you are just looking to make power, then either engine will work for you. The LS3 is a cam swap, headers, and a tune away from hitting close to 500 at the wheels, but if you put LS3 heads and the same components on the LS2, it is not too far behind it.
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