This is what I bought this Spring!!! My new engine I'm very happy of this. This is a 350 of a Camaro 69. It have 300hp and 300lbs of torque stock.It 's a very good engine to start! When a I bought this engine, one spring valve was broken and when I overhall these head, the cylinder have a scratch at the top and the valve was like that ( . The rest of the engine it's ok .