Oldiron440
Big blocks rule small blocks drool!
Remember compression is torque and that 440 doesn’t have any.
Brainstormin' 440 vs 5.9 ...
- Thread starter 318willrun
- Start date
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getting slower just sitting on the stand !!!
I'll do everything I can to raise the faith in a RV 440
Turbo440Dart
crank runner over-er
I have to strongly disagree with that.
Nick did a 440 more comp had a cam headers 750dp lost 20 hp when he put 440 manifolds on itNet is 195 hp, 320 ft lbs trq.
I'm guessing that would be about 260 hp / 390 gross ??
Just thinking out loud..... I could be way wrong. But this is my "mind math"
- It will have headers and 2.5" straight through muffler on the back. That's gotta be 40 hp (and a bunch more torque) on a 440 from the manifolds, single exhaust and catalytic converter... all in a small single pipe about 18 feet long LOL. When the heads were done, I did remove a little casting and a touch of bowl blending, but I consider it more of a "clean up" than porting. Might be another 10 there. I think I should be somewhere around 300-310 HP gross and maybe 425-450 ft lbs of torque?
14.3
getting slower just sitting on the stand !!!
I'll do everything I can to raise the faith in a RV 440
RV440willrun....maybe...
I'm not. lol
The recipe is right here, it's just too bad it's not a 68 440, we wouldn't be talking about it.
Truth is, just a Whiplash cam would make a low comp 440 perform better than the 68.
Give the 440 what the 360 has. 9:1 compression with a closed chamber head with efficient ports proportional to the magnum heads. Good quench like a magnum and a hydraulic roller cam proportional to the reground Oregon cam in the 360 along with a dual plane rpm air gap like the 360 has and a similarly proportional carburetor like the 360 has . Or give the 360 what the 440 has. Pistons down in the hole, low compression, open chamber heads. And factory stock flat tappet camshaft with a stock cast iron intake
Here it is apples to apples and the 440 runs away from a 5.9, not even close. lol
Who cares what Nick did, he's a hack. lol
I gotta be honest.... I've never seen a BB 440 crowd so intimidated by a 200,000 mile 360, with a little more cam. And, who said at 200,000 miles that the 360 has all the compression it should have from the factory?? Who knows what it has.... I don't. I can tell ya, I threw it in and ran 12.9's (oh, that was on a hot/humid day) I think in good air, that 12.91 might go down to a 12.79
(oh, that was on a hot/humid day) I think in good air, that 12.91 might go down to a 12.79
But, I will do everything I can to give the 440 every opportunity to run its best. It's what I do
One thing I have noticed when tearing down magnum 360 engines is how well the cylinder walls hold up compared to the LA motors considering the mileage on them. I think it may have to do with them being fuel injected.I gotta be honest.... I've never seen a BB 440 crowd so intimidated by a 200,000 mile 360, with a little more cam. And, who said at 200,000 miles that the 360 has all the compression it should have from the factory?? Who knows what it has.... I don't. I can tell ya, I threw it in and ran 12.9's
lbs-ft per Cid tells the efficiency of the engine since the 440 makes similar torque as a decent 360 which to me now makes them similar engines that will need to turn similar rpm to make similar hp, but since the 440 is way less efficient it needs to move more air than the 360 to make similar power and rpm.
What 440 and what 360 are you refering to? Are you looking at peak torque or average torque?
I ain't intimidated, I'm just playing along. lol
Where is the big red X ?
I had plenty of low comp small blocks run way better than most people would think they could. Example: My brother's 68 Valiant, his only vehicle at the time, running the exact 1/8th mile times as an ls6 Chevelle. Ls6 had open headers 4:10 gears, Danny had full exhaust and 3.91 gears. Ls6 had slicks, Danny had used dirt track tires.
The Ls6 guys kept coming over and looking at the small block and shaking heads.
fixed it for ya
Circles? You are on the wrong track.. we are talking drag strip.
A 440 out of a rv makes 465 pk torque?
I have yet to see any 360 carry torque through the rpm range like a decent 440, not even close.
What 360 are you comparing this not stock 440 engine to?
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