500fwhp from a 390 HiPo...what would it take?

[TireSmoknWindsr]

As the title says, what would it take to produce 500fwhp from a 390 HiPo engine.

 

[Jonstantine]

heads are the key..
from what i hear, the reason the 428 produced more power than the 390 was because it first had better heads, then better everything else

so basically, an aggressive combo would probably do it
large cam, nice intake, top of the line heads, headers... the works

as for specifics.. i have no idea

 

[dolfan87]

heads are the key..
from what i hear, the reason the 429 produced more power than the 390 was because it first had better heads, then better everything else

so basically, an aggressive combo would probably do it
large cam, nice intake, top of the line heads, headers... the works

as for specifics.. i have no idea

Exactly.

Get the best heads you can afford, and go from there. I am expecting 500+ hp from my 393W, so you should be able to do it with a 390.

 

[rbohm]

yep, the first thing you need is good heads. an engine has to breath to make power, everything you do to that end helps. you will also need a cam in the .575-.600 lift, and 235-250 duration @.050 range. for a carb use a 750-850 cfm carb. headers need to be at least a 1 5/8" primary tube with 1 3/4 being better. top it of with a victor jr intake, and you should in the neighborhood of 500hp.