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 ...

Stock Eliminator LS7: SAM Tech eliminates the competition by wringing 825 hp and 8,300 rpm from a hydraulic roller LS7 with a factory GM block and heads In highly competitive racing classes that place ...