Brainstormin' 440 vs 5.9 ...

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318willrun said:
Means we have no dyno numbers, Wallace online says the 5.9 is at 341 horsepower. So the real question is this: What would it take to get the RV 440 over 341 HP??
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With a 5.9l and similar cam Richard Holdener got 350-365 hp depending on intake he used, which sounds like your in the same ballpark, IQ52 got 387hp with 850, M1, headers and a 509 cam.
 
92b said:
When comparing head flow on two different engines the assumption seems to be that if the flow is the same the potential HP and TQ will be the same.
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Yes there's many factors, but there's a general range of hp people get that you can ballpark it somewhat. Never said these are a 100 % comparable just similar enough to kind of see what good heads would do on 5.9l that's in a similar ballpark.
92b said:
I'm not so sure about that. The flow is measured on a flow bench at a standard depression. More depression at the same lift usually results in more flow. So my question is, if you put heads that flow the same on a flow bench on to a 440 pump vs a 360 pump are they still going to flow the same? Edit: And you turn the pumps at the same rpm.
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To me displacement is dynamic, eg. at the same VE% a 440 @ 5,000 rpm and a 360 @ 6,111 rpm are basically the same size cause they both should be displacing the same amount of air around 637 cfm which should have similar hp capabilities at least at that rpm. So at those rpms they would have a displacement of 637 cfm. So unless the 440 has terrible VE% and the 360 has crazy stellar VE% I doubt they will displace (flow) the same at same rpm.
 
I haven't read it all 360 will run.

Got to be a 440 low comp with good top end.
The 360 is all about done I would guess, the 440 is just getting going...:thumbsup::usflag::thankyou:

My 64 D200 is heading for the strip too.
As its pre 440 its going 413 then 426 after that.

D200 on truck.jpg
 
RustyRatRod said:
He has nothing tangible that does it.
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It was meant as a tease against his cheering on of these low torque RV 440's aka Joking around than being 100% factual, yes I imagine people have built 408 turds too, I thought you blocked me :)
 
Here's a 410 stock magnum heads and cam made 490-498 lbs-ft

 
I guess it wasn't meant to be BB vs SB,, but rather is $500 (or so) better spent on the 5.9 or 440... Putting the 440 in the truck is a snap, I got everything. But the money should be spent where on each engine to lower the ET the most. ?? Why these two engines? Easy, 5.9 is in the truck and the 440 is ready to go in the truck....
 
I’ve been the one of the biggest opponents to the big block but I still think you should put it in over the winter and spend next season making it faster. Put it in the way it is now, run it, and make it less slow over the next year.
 

TT5.9mag said:
I’ve been the one of the biggest opponents to the big block but I still think you should put it in over the winter and spend next season making it faster. Put it in the way it is now, run it, and make it less slow over the next year.
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I just might do this ^^ . But, if it's a slug pig, I would make changes before even taking it to the track
 
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