620Hp small block

Guitar Jones said

I believe that is one of Brian's builds. Why is everyone so afraid to make horsepower with a stock block? I believe they will take more than you think and besides, if it's a street engine you aren't operating at max horsepower for any appreciable length of time.

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cause if it does break your out the $10--15,000 bucks you got in to the engine. Put your money in to the right engine block that was design and built for a 4 inch stroke-600 hp output.

street engines can put lots of stress, more so then a 1/4 mile race engine. Heat, low rpm is the number one killer. race engines get shut right down, street engines get stuck in traffic, have to run cheap low octane fuel, they might not get fresh motor oil often enough--oil degrades over time, why changing the oil every three months regardless of the mileage used to be recommend