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To answer your questions would require more imput on your end.. What are you looking for out of you vehicle? If you run 13's already, how much faster would you like it to be? A small inch engine will require alot of specialty parts to make say 500hp and still be reliable. Not to mention if your NOT using a blower, you'll have to rev the heck out of a 302 to obtain 500 real hp! This is where all the heavy duty "high dollar" parts come in. It's high RPMs that kills engines 99% of the time. However, if you start with a 460 you can use the stock block, crank and rods and easily support 500hp at MUCH lower RPMs. (Ford Motorsports sells a 500+ hp 460 crate engine that uses the stock production parts. And I'm sure the Motorsport engineers did their homework & testing better than any back yard gearheads) Not to mention, the 460 will make HUGE torque and be SO MUCH more streetable. (better idle, better vacuum for power stearing and power brakes, run on pump gas etc) An engine is simply a thermodynamic air pump. The more air and fuel you move through it, the more power it will make. A 300 inch engine can make the same power as a 400 inch engine can. You'll just have to rev the 300 inch engine 33% higher to match the pumping charateristics of the 400. (assuming that you use the same heads, induction ect. on both of them) If you can fit the 460 into you ride fairly easily & cost effectively, I would do it and forget the smaller V8's. We have build dozens of smaller V8's for people and advised them from the start to reconsider and use a big engine. A few months later, they always come back and say "I wish I did the bigger engine instead like you recommended".. I'm not saying small blocks are bad. They can make great power and be made reliable. Big cubes just make far better street engines, when comparing price and real streetability.
Good luck and drive FAST!!!
 
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