400 Hp ( Street 318 ) Build !

The unofficial story I heard was the heads had tons of work done to them, and the dyno session actually got cut short because they started leaking in a few ports.

In other words....... an interesting proof of concept....... but not at all a realistic approach if you’re looking for any type of reliability.

The question for me would be..... if you replaced the heads with something more conservatively ported(as in reliable)....... how much different with the power be?

Why limit it to factory heads? Slap some Trick Flows on it. 400 HP from a 318 is gonna be tough to do with factory iron heads. I'm sure it can be done.....maybe they did it. Or.......a happy dyno?

My thing is, I always question articles like this because they have sponsors to answer to. I want independent, non biased testing.