The resulting numbers are absolutely astonishing: 825 horsepower and 8,300 rpm with a hydraulic roller camshaft, factory GM cylinder head castings, and a production LS7 aluminum block. That's nearly ...

There’s a muscle-bound world of used engines out there just waiting for deals to be made, but you should tread carefully to avoid being bitten. Efrain Diaz recently bought what appeared to be a really ...

In highly competitive racing classes that place strict limitations on engine modification, scratching and clawing for that last percentile of hp separates the apex predators from the bottom-feeding ...