RAMM
Well-Known Member
I never even try to predict what a spacer will do anymore--You just never know 'till ya know. J.Rob
'Pop's Engine' another 440 on the dyno.
- Thread starter IQ52
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I never even try to predict what a spacer will do anymore--You just never know 'till ya know. J.Rob
Fisher
Old Guy with a Cool car.
Ok so a 750 would be a better choice for that engine, be crisper down low and still be enough on the top end. I am runing a AED 750 HOM carb. My 426 Wedge used 628 cfm.
MRL Performance
Well-Known Member
I just ran a 440 on the dyno, and for S&G i put a race prepped 4412 500cfm 2bbl on it. It was pulling 611cfm measured.
Yup working over cast iron heads is a real pain in the butt. I have a set of W2's in here now, Im looking at 12-15 hours of work ahead of me.
Yup working over cast iron heads is a real pain in the butt. I have a set of W2's in here now, Im looking at 12-15 hours of work ahead of me.
Fisher
Old Guy with a Cool car.
You are getting good results working over cast heads, you have the magic obviously.
You know you caint make power on anything under 10:1. What are you thinkin?
nitrojunkee
Well-Known Member
Is that at 28" ?
I don't see any time to do much tuning right now, but with the first pulls today using the EZ heads.
RPM..........TQ/HP
4500........428/367
4600........451/395
4700........502/449
4800........521/476
4900........535/499
5000........535/510
5100........544/528
5200........541/536
5300........538/543
5400........536/551
5500........533/558
5600........531/567
5700........532/578
5800........529/584
5900........537/603
6000........534/609
6100........536/623
6200........530/626
6300........537/645
6400........531/648
6500........528/653
6600........521/655
RPM..........TQ/HP
4500........428/367
4600........451/395
4700........502/449
4800........521/476
4900........535/499
5000........535/510
5100........544/528
5200........541/536
5300........538/543
5400........536/551
5500........533/558
5600........531/567
5700........532/578
5800........529/584
5900........537/603
6000........534/609
6100........536/623
6200........530/626
6300........537/645
6400........531/648
6500........528/653
6600........521/655
txstang84
Well-Known Member
Sweeeeeeeet
airwoofer
Drivetrain limit explorer
That is an amazingly flat torque curve! Shoulda kept pullin as it looked like it wasn't done. Ole Pop woulda had a blastr in that truck. Still on pump swill?
airwoofer
Drivetrain limit explorer
10.4:1 compression and our ported EZ heads that are flowing 350 cfm at .600" lift.
I wonder how much of the gains were due to the bigger head flow and how much was from the higher CR.
We made two more pulls this morning and made 552 LB-FT @ 5400 and 657 HP @ 6600, 658 HP @ 6700 and 652 HP @ 6800, then valve float. I wonder what would happen if we had a correct camshaft in there? This one just isn't right (too much duration) for the engine design as we have only 120 psi cranking compression. I gotta pull the 440 off the dyno because we are dynoing a 496 BB Chevy for a guy tomorrow. When Pop's goes back on we will have the XE285HL cam back in it for further tests with the EZ heads.
rbdart
Well-Known Member
Great stuff....seems Pop's was pretty sharp and you for keeping it rolling,I tip my hat to ya...
Yeah, the graph looks like a straight line, really strange.
Still 91 octane from the Stinker station.
72BBSwinger
Well-Known Member
Hey I thought that cam was already in it with solid lifters?
skrews
Well-Known Member
What cam were you running with the EZ heads ? Still the XE285 Comp with solid lifters ?
Durn it, I've been so busy I forgot one important item on this thread. This was with an old Racer Brown solid roller cam ground baaaack in 1967. The snag was with pushrods bending under the valve spring pressures and RPM's when we added the roller cam set up.
Now we are going back to the XE285HL for further tests with the EZ heads as we get the time.
I really wish we were making 650 HP with the XE285HL, but it should do really good. With the long duration roller we only have 120 psi cylinder pressure and we'll see some increase with the smaller solid/hydraulic cam.
thanks for sharing the steps and results, you make it seem too easy.
basic recipes and good head flow.
basic recipes and good head flow.
67 Power Wagon
Hemi Pawr or BUST!
Holy **** what year of 440 is this? DAMN the numbers are astounding......
Years before Pop died while he was still building engines for some west coast NASCAR guys, he said to me, "Jimmy, there are three secrets to making horsepower. The first two are cylinder heads. Third and most important, is cylinder heads!"
The short block is a January 1974 440 with the addition of a factory 440 steel crank, stock rods with ARP bolts and L2355F six pack replacement pistons with an internal balance. It's how Pop built it in 1997.
If doing again now, and keeping it a 440, I wouldn't do it that way. I don't mind the stock block and forged steel crank, but I would go with H-beam rods and some lighter pistons.
rbdart
Well-Known Member
Just your std run of the mill old junky 440...it's the Man behind the build that makes it greatness..you can do this with any 440 if you have the 'know'...research some of his builds and others here on their combos and you'll be even more amazed...yr has nothing to do with how much power can be made...torque, its whats for dinner,astounding is the feeling you get afterwards with a cigarette waiting for your blood pressure to resume to normal..lol
Just itchin' to get Pop's motor back on the dyno. It has the EZ heads, Hughes rockers and the XE285HL with the solid lifters in it now. There is some thought about putting it in our 1973 Dodge Monaco and driving it to Mopars At The Strip.
Yep, Merlins heads are here. There is some work to be done yet, but the small block Mopar Edelbrock RPM heads are progressing. Some intake results.
Lift.........claimed...........OOTB...........ported
.100..........69.................61.................70
.200.........129...............126...............142
.300.........188...............175...............196
.400.........232...............223...............242
.500.........249...............243...............267
.600.........251...............250...............285
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