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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246366
06/06/12 07:20 PM
06/06/12 07:20 PM
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Joined: May 2008
Posts: 452
new york usa
pattyboy 572
mopar
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mopar
Joined: May 2008
Posts: 452
new york usa
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Currently my combo...in a 3276 # roadrunner 12 to 1 comp 325 440-1...runs 9.80..137...but i cant drive well ...then crusie night always a blast i know theres more in it.. bullet cam 280/290 @.50 683 / 705 112 center line 1150 dominator....430 s in dana 10.5 W.pat 800 plus hp
Last edited by pattyboy 572; 06/06/12 07:21 PM.
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246370
06/06/12 07:30 PM
06/06/12 07:30 PM
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Joined: Nov 2004
Posts: 3,619
Norwich CT USA
Defbob
master
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master
Joined: Nov 2004
Posts: 3,619
Norwich CT USA
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Quote:
No doubt about mileage! What would happen if you took that mild 572 and put eddy performer rpm heads on it?
Do you know the rpm range of a diesel? 
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Re: how well would a 572" work as a street engine?
[Re: Defbob]
#1246371
06/06/12 07:40 PM
06/06/12 07:40 PM
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Joined: Jan 2012
Posts: 1,545
USA
hudsonhornet7x
OP
pro stock
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OP
pro stock
Joined: Jan 2012
Posts: 1,545
USA
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Quote:
Quote:
No doubt about mileage! What would happen if you took that mild 572 and put eddy performer rpm heads on it?
Do you know the rpm range of a diesel?
I figured! Although I did get an olds diesel to light the tires up once. That is pretty impressive if you know olds diesels!
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246372
06/06/12 08:35 PM
06/06/12 08:35 PM
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Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar
master
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master
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
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Quote:
Quote:
Quote:
No doubt about mileage! What would happen if you took that mild 572 and put eddy performer rpm heads on it?
Do you know the rpm range of a diesel?
I figured! Although I did get an olds diesel to light the tires up once. That is pretty impressive if you know olds diesels!
Impressive ?
I'd call that amazing. 
I did a lot of work for dealers in the early 80's and they were........how can I put this delicately............ PIGS !
Vegas and Pintos would smoke them.
Unless you get heads that will flow what a beast like this wants , I think you could find a better way to spend your money.
Max'ed Eddies would still be less than optimum ..... they would work , but you'd leave a lot on the table.
But I like the way you think.
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Re: how well would a 572" work as a street engine?
[Re: 70blackfish]
#1246374
06/06/12 09:00 PM
06/06/12 09:00 PM
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Joined: Jan 2012
Posts: 1,545
USA
hudsonhornet7x
OP
pro stock
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OP
pro stock
Joined: Jan 2012
Posts: 1,545
USA
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Thanks guys for the replies. I asked about the rpm's because I have a new set for my old engine. I can always sell them and put the money into better heads. I am leaning toward building this very engine. A decent cam and heads and it would be a powerhouse street engine. Well, I guess I will take the Olds diesel out for a drive tonight. Maybe look for a few vegas! 
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246381
06/07/12 12:39 AM
06/07/12 12:39 AM
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Joined: Aug 2003
Posts: 43,352
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,352
Bend,OR USA
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My 518 C.I. low deck stroker, 4,375 bore, 4.300 stroke, made 727 HP and 710 Ft. Lbs on Oregon non ethanol pump swill with a single dominator and a set of non ported Indy SR heads with M.W. ports. It pulls realy hard to 7300 RPM. I have dyno tested the same short block with a set of Indy 440-1 heads that flowed 40 CFM more and that combination made 775 HP and 742 Ft. lbs on the same dyno with the same brand pump swill  It does like to spin the hind tires on the street real easy   3450 lbs with me in it , best ET has been 9.993 at 134.6 MPH at Woodburn drag strip last fall,motor only corked up with teh air cleaner on. It will go quicker  Bigger C.I will make more power
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: how well would a 572" work as a street engine?
[Re: Cab_Burge]
#1246382
06/07/12 03:10 AM
06/07/12 03:10 AM
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Joined: Jan 2003
Posts: 2,935
Finalnd, Perkele
jyrki
master
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master
Joined: Jan 2003
Posts: 2,935
Finalnd, Perkele
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We just dynoed a 572 street hemi last week. 9:1 CR, hydraulic flat tappet cam with 0.5+" lift and 240+ at .050", MP aluminum heads with the ports cleaned up, MP single plane intake, 750 cfm hp holley, 2 1/8" primary headers and 3" exhaust with mufflers and pulley driven water pump, and that's about it. It made 620 hp at 5600 and 645 ft-lb at 4600, over 600 ft-lb between 2600 and 5400. It would have made more peak power with a bigger carb, there was 2.4 hg vacuum in the intake at peak power. It pulled 26.2 gallons of gas per hour at peak power, so it must need at least a BG400 fuel pump (the factory mechanical worked just fine). So, I would say that a 572 would work as a street engine, at least if you are not in a hurry.
Last edited by jyrki; 06/07/12 03:13 AM.
Plynouth VIP '67 TT IC EFI
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246383
06/07/12 07:41 AM
06/07/12 07:41 AM
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Joined: Mar 2010
Posts: 984
Tennessee
Hemi ragtop
super stock
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super stock
Joined: Mar 2010
Posts: 984
Tennessee
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Quote:
Thanks guys for the replies. I asked about the rpm's because I have a new set for my old engine. I can always sell them and put the money into better heads.
I am leaning toward building this very engine. A decent cam and heads and it would be a powerhouse street engine.
Well, I guess I will take the Olds diesel out for a drive tonight. Maybe look for a few vegas!
I built a 540 HEMI with 4.5" stroke. Stock MP heads, 248/254 @ .050 solid roller and inline 750 Hollys. Torque is unbelievable. Peak HP was only 635 @ 5,900 rpm but it is more than I can use on the street believe me! I would warn you not to use a stall in the 3500 range like you will be advised to do, it doesn't need it.
Lynn
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246384
06/07/12 10:21 AM
06/07/12 10:21 AM
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Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
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Quote:
No doubt about mileage! What would happen if you took that mild 572 and put eddy performer rpm heads on it?
If it was mine, I'd probably do it with a puffed up 440-1 and intake and a big 4150 carb (the Braswell is awesome), fairly tight quench and a solid roller that keeps the dynamic compression in a happy zone for 93 octane.
Might even look into one of those lifters without needles for additional reliability........maybe the Isky EZ-Roll.
Shoot for 6000-6500rpm. To me, it makes no sense to build a truck engine.
If that thing didn't go 800+ with way too much TQ for street tires, I'd be surprised.
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Re: how well would a 572" work as a street engine?
[Re: jim sciortino]
#1246385
06/07/12 10:29 AM
06/07/12 10:29 AM
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Joined: Jan 2012
Posts: 1,545
USA
hudsonhornet7x
OP
pro stock
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OP
pro stock
Joined: Jan 2012
Posts: 1,545
USA
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Quote:
Quote:
No doubt about mileage! What would happen if you took that mild 572 and put eddy performer rpm heads on it?
If it was mine, I'd probably do it with a puffed up 440-1 and intake and a big 4150 carb (the Braswell is awesome), fairly tight quench and a solid roller that keeps the dynamic compression in a happy zone for 93 octane.
Might even look into one of those lifters without needles for additional reliability........maybe the Isky EZ-Roll.
Shoot for 6000-6500rpm. To me, it makes no sense to build a truck engine.
If that thing didn't go 800+ with way too much TQ for street tires, I'd be surprised.
That would be an awesome engine. I have not heard of a Braswell 4150 do you have a link?
What would the power do if a roller cam was replaced with a flat tappet? With so much hp being produced, it might be a nice trade off in my application. I will admit I like the simplicity and ease of maintenance with a hydraulic flat tappet.
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246386
06/07/12 10:54 AM
06/07/12 10:54 AM
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Joined: Jan 2003
Posts: 10,031
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,031
Frostbitefalls MN (Rocky&Bullw...
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A 572 with standard port heads won't make much more power than a 440 with the same heads, but it will make it a lot LOWER! The torque will be fantastic down low. Probably the middle of the road head for this combo is a fully ported 440-1 head. You could set it up for max power by 6000 to 6500 rpm , max torque could be made to show up about 4600 to 4800 rpm, maybe a bit less. The B1 stuff is more rpm orientated, and will like more rpm so personally I consider the B1 heads a bit big but that is me. If I can build a 900 hp 528 cube motor with the 440-1 heads, You can build an 800 hp 572 street killer that will live a long life and not eat parts for lunch! 
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246387
06/07/12 12:10 PM
06/07/12 12:10 PM
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Joined: Jan 2003
Posts: 13,415
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,415
Marion, South Carolina [><]
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They're hell on tires. 
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246388
06/07/12 03:30 PM
06/07/12 03:30 PM
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Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
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Quote:
Quote:
Quote:
No doubt about mileage! What would happen if you took that mild 572 and put eddy performer rpm heads on it?
If it was mine, I'd probably do it with a puffed up 440-1 and intake and a big 4150 carb (the Braswell is awesome), fairly tight quench and a solid roller that keeps the dynamic compression in a happy zone for 93 octane.
Might even look into one of those lifters without needles for additional reliability........maybe the Isky EZ-Roll.
Shoot for 6000-6500rpm. To me, it makes no sense to build a truck engine.
If that thing didn't go 800+ with way too much TQ for street tires, I'd be surprised.
That would be an awesome engine. I have not heard of a Braswell 4150 do you have a link?
What would the power do if a roller cam was replaced with a flat tappet? With so much hp being produced, it might be a nice trade off in my application. I will admit I like the simplicity and ease of maintenance with a hydraulic flat tappet.
Check Braswell's website......if it's not there, you can give them a buzz. It's a spread 4150.
A flat cam of similar specs will obviously be down. How much is difficult to say. In this day and age of "naked" oils, some precautions need to be made to ensure longevity. Treated lobes, lifters that oil at the face and oil with high anit-wear additives, like zinc are good safety measures.
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Re: how well would a 572" work as a street engine?
[Re: hudsonhornet7x]
#1246389
06/07/12 05:55 PM
06/07/12 05:55 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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To be honest... I think you wasting your time with that many cubes and little heads... you would have a gas hog with a short rpm range that'll just blow the tires off at the low end hit.... JMO 
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Re: how well would a 572" work as a street engine?
[Re: quickd100]
#1246391
06/07/12 10:44 PM
06/07/12 10:44 PM
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Joined: Jan 2012
Posts: 1,545
USA
hudsonhornet7x
OP
pro stock
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OP
pro stock
Joined: Jan 2012
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USA
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Quote:
My big cube truck engine.Dave
WOW!! Any way you slice it, those valve covers and what is underneath them is impressive.
I do believe that I will have a 572 short block built by compu flow. For my application, a set of s/r's or 440-1's would do just fine. I am still out on a cam though as this short block will put enough of a strain on my hobby money. I could always buy some of the gingerbread at a later date.
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Re: how well would a 572" work as a street engine?
[Re: 70blackfish]
#1246393
06/08/12 02:41 AM
06/08/12 02:41 AM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
would be a great street motor. with the right cam and heads.
If you were going to buy heads then don't waste money on edelbrock eddy... they are good but not for a 572.
call dwayne porter....tell him what you want to do...He won't steer you wrong.
I agree with this as Dwayne speced out the cam in my 493. Its a solid flat tappet and I told him I wanted an aggresive cam that makes good power as the lumpy idle does not bother me at all. And the idle is very nice and it works good. Dwayne is very good. Ron
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He's a GREAT guy...and a personal friend of mine,who has helped me out more than a few times in the past! 
Randy B. 
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