Brainstormin' 440 vs 5.9 ...

318willrun said
For clarity. I will NOT use NOS. Now that that's out of the way..... the question:
Will a bottom dollar 440 out run the 5.9 in our '80 D150. In other words, can I do a max of 500 bucks into the 440 and out run the 5.9 numbers.

440 is an RV engine.

I have 2 intakes, a single plane torker or the factory cast.

I have 2 sets of heads. 452's freshly done or 906 that look to be freshly done

So the money would be spent on the cam/lifters.

the 5.9 numbers are 12.91 in the 1/4. 8.15 in the 1/8. 1.78 60 ft. on a warm/humid day
the 5.9 is 200,000 mile motor with an oregon regrind cam and 4bbl.

View attachment 1716475590

If it were me and I already had all of those parts, I would definitely do the 440 with a modern cam grind and let it rip. You already have excellent numbers from the 5.9 Magnum. You already have most of the parts for the comparison. And, you have a youtube channel where we can watch the build and results as you go. Everybody wins. And I think the 440 will win in that scenario too just because the heads will move more air. But, only one way to find out.

Whichever way you go, I approve and I will watch the videos. Good luck and keep up the good work.