Proposed 400 bb build, cam recommendations

MOPARMAGA said

600 HP with a 400 is going to take like 13-14:1 compression, a big cam, heads that work really well. It won't be street friendly at all.
I should be on the Dyno real soon with my 470.
It's a simple build it should make 600 fairly easy and it might even be somewhat street worthy for (not my car, lol)

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Told ally disagree. Let’s do some math…

600 (hp) divided by 400 (CID) = 1.5 HP per cubic inch.

A well thought out engine combination can do this. This is not exactly throw together parts from the bottom of the page. I would certainly invest the biggest chunk of change at cylinder heads!

I would approach this 400 only cube engine like a small block.
The best part being is the aftermarket big block head on s nicer than a small block head. A much higher ceiling of performance.
For a 340/360 @ 1.5 multiplication, it would equal 510/540 hp. A sizable cam it will need but not streetable? Well, that’s a driver/owner issue.

This can be done on 93 pump gas.

Build wisely!