Lets build a CHEAP(!!!!!!!) bracket motor!

Pretty sure, as rumblefish stated earlier, a "simple" cam and intake change in an otherwise stock (and not necessarily rebuilt) 5.9 will get you there if not awfully dang close.

That's what DC marketed as the 380/385 HP crate engine, and also as stated- all that I've seen record of dynoed at 385 or more.

For the record, the 300 HP crate setup was the factory stock 5.9 cam.

...and again we're at simple math to deduct the 20% gross to net conversion and arrive close to the 245 net HP rating of the 5.9 in my '00 Dakota R/T.