450 - 500 hp 302, all motor

[smooth]

like everyone said.. not happening. you are talking a solid roller motor setup here with some high dollar internals and a 4bolt main with all the whips to spin that kind of rpm.

you would be hard pressed to pull peak 340rwtq out of a 302 with street gas n/a. you are looking at 400-450rwhp here. even with an average torque curve you would have to peak HP at ~6800 to make 400rwhp. to make 450rwhp with a tad more tq at peak you are looking at a ~7400rpm peak. it would probably need to wind out past 8k. definitely roller territory.

look for a very well built 302 to make ~340rwhp and around 320rwtq on street gas.

sky,

Look how many guys are under 300rwhp HP on this board with aluminum heads.

look how many of them are running tiny cams and ~9:1 compression also.