Brainstormin' 440 vs 5.9 ...
- Thread starter 318willrun
- Start date
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Oldiron440
Big blocks rule small blocks drool!
This is a 440 that was built with the forged TRW low compression pistons, it has all the old school tricks for making power for cheap. Meaning the 452 heads have been I unshrouded and blended along with port matching and shaved to 80cc.
They had mopar SS 1.81/2.14 valves and now they’re Manlys. The spring keeper and retainers were replaced at the same time as the cam. I’ve been using mopars cast rockers that I’ve had for years.
The block is a 1970 block is a hp charger it’s been bored 60 , crank 10-10, Hemi oil pick up, melling HV oil pump that’s blended, polished stock rods with good bolts. The cam is a bit of a compromise because of the compression it’s a little too much duration
but it works, it’s the Mopar 5.57 lift mechanical that I had NOS. The TF heads are big bucks and they should have a good short bock under them, I’ve seen them make 750 on a 4.25 stroke 383 but not a low ball project.
I’ve never been impressed with 440source heads, I’ve seen plenty of problems you would think they could make more power. The best numbers for this engine were 545/525 but I can’t find the sheet. I’ve made 645hp/620tq with 915 heads so I don’t see the need for dropping $2500+ for heads for a street strip car that doesn’t need to run a certain number. My Volare is capable of running low tens going to the DQ..
They had mopar SS 1.81/2.14 valves and now they’re Manlys. The spring keeper and retainers were replaced at the same time as the cam. I’ve been using mopars cast rockers that I’ve had for years.
The block is a 1970 block is a hp charger it’s been bored 60 , crank 10-10, Hemi oil pick up, melling HV oil pump that’s blended, polished stock rods with good bolts. The cam is a bit of a compromise because of the compression it’s a little too much duration
I’ve never been impressed with 440source heads, I’ve seen plenty of problems you would think they could make more power. The best numbers for this engine were 545/525 but I can’t find the sheet. I’ve made 645hp/620tq with 915 heads so I don’t see the need for dropping $2500+ for heads for a street strip car that doesn’t need to run a certain number. My Volare is capable of running low tens going to the DQ..
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TT5.9mag
Two atmospheres are better than one
I’m almost certain that if @318willrun builds a $6500 440 then the truck will be faster than what it was with a junkyard 5.9. Is that where we are now? I thought we had a $500 budget? I’m confused
Well, I'm really leaning at this point to run it as the RV 440 smog motor that it is before "building it". We'll see. Give me your honest ET guess if I do this .... Because I have no idea what a smogger RV 440 will run in a D150
TT5.9mag
Two atmospheres are better than one
how smogger we talkin' here? stock TQ with all the goo-gaw **** on it? smog pump? lean burn?
any gear or stall?
33IMP
Well-Known Member
Rv 440, as is ? (plus headers)
A half second, or more, slower that your nice running 5.9.
A half second, or more, slower that your nice running 5.9.
So, 16.9? Ok !!16.9
Mostly because I want to see your wife swing the sledge at it on you tube.
13.4 ? Ok !!
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LOL.... it will replace the 5.9 in our truck. So as the truck sits.... I think I pretty much wrote it all out early in the thread. Smogger as in smog '77 RV 440 .... factory cam, factory pistons, factory crank, 452 heads ... (I do have a single plane and the factory cast, so either of those with the 750 DP from the 5.9)
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Turbo440Dart
crank runner over-er
I’ll give it a honest 14.7 once it’s squared away in stock form.
So far, the range is:
16.9 --- down to ---> 13.4
16.9 --- down to ---> 13.4
TT5.9mag - 16.9
331MP - 13.4
Turbo440Dart - 14.7
This could be fun, and raise my curiosity so that I for sure install as is. Should I throw out a prize?
331MP - 13.4
Turbo440Dart - 14.7
This could be fun, and raise my curiosity so that I for sure install as is. Should I throw out a prize?
Hard to tell, IQ52 got 309hp with M1 headers and a summit cam, so shouldn't even hit 300 hp with stock cam, that's got to be 40-60 hp less than you got now. Guessing mid/high 13's.
give a number and I'll add it to the list!
TT5.9mag - 16.9
331MP - 13.4
Turbo440Dart - 14.7
273 - 13.7
Now I am sure to do this first. Ye'all perked my curiosity.
Turbo440Dart
crank runner over-er
Winner decides if you put the bottle to it?
I'll send out a prize and then we can guess how long it will take USPS to deliverWinner decides if you put the bottle to it?
Turbo440Dart
crank runner over-er
I'll send out a prize and then we can guess how long it will take USPS to deliver
I’m in for a 318WR sticker if I win. If @TT5.9mag wins I’ll just drive down the street and raid his mailbox
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