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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: bigtimeauto]
#1178690
02/16/12 12:35 PM
02/16/12 12:35 PM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
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Quote:
Quote:
http://bestmach.ipower.com/flowsheets/FDWPSO45001.pdf
Great comparison, 10K for pso's versus 5K for 572's. Did you run both of these heads to form this opinion? 
part of that 10k would most likely be Ti valves, and the porting. I would like to know where a guy can by a set of 572 heads, cnc ported, with Ti valves and the GOOD valve train for $5,000. I spent a lot more than that for my 440-1 set up. Had I been smart, I could have waited a couple of seasons and picked up 200 hp for about $3500. That would be cheap! 
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: gregsdart]
#1178692
02/16/12 02:33 PM
02/16/12 02:33 PM
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Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto
Trophy Winner
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Trophy Winner
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
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Quote:
Quote:
Quote:
http://bestmach.ipower.com/flowsheets/FDWPSO45001.pdf
Great comparison, 10K for pso's versus 5K for 572's. Did you run both of these heads to form this opinion?
part of that 10k would most likely be Ti valves, and the porting. I would like to know where a guy can by a set of 572 heads, cnc ported, with Ti valves and the GOOD valve train for $5,000. I spent a lot more than that for my 440-1 set up. Had I been smart, I could have waited a couple of seasons and picked up 200 hp for about $3500. That would be cheap!
A good engine is a combination of parts not just flow numbers. Will a set of PSO's really pick up 200 horsepower over a set of 572's?
BB, TT5,Procharged 3300lb Street Car 4.79/154
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: Keith Richards]
#1178693
02/16/12 11:25 PM
02/16/12 11:25 PM
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Joined: Jan 2003
Posts: 2,933
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,933
A shed in England
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Quote:
Steeldust,
Can you post some performance numbers for your car with the -1's on the 572? compression , weight, et , etc?
Mopar Rich in conjunction with Mopar Engines West are building me a 572, we will be using the 440-1's off of there 2006 Mopar Muscle engine challenge motor, (these same heads have gone 9.20's on my 500" pump gas motor, which was the original challenge motor) after reading this thread I am more convinced to stay with the -1's for now as I really don't want high rev's to make power. Our current motor with -1's that aren't quite as messaged is making just under 800hp and has ran a best of 9.04 at sea level in a 2825 pound car. The goal is to run in the high 8's on pump gas, we will also be losing some weight as the block will be an aluminum KB. 
We'd be looking to go 8.50 / 8.60 at that weight with our motor. Some specs are in sig, heres a few more. Less than .750 net lift, shift @ 6500 and sees 6850 ish through the traps.
HTH's 
PS FWIW the KB was worth a 70lb saving over a Mega blocked 528 with the same heads.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: Tig]
#1178694
02/16/12 11:45 PM
02/16/12 11:45 PM
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Joined: Jan 2003
Posts: 14,513
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,513
So. Burlington, Vt.
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i did a pretty basic 572 a couple of years ago.
i went with the CNC365cc 572-13's so the peak power would happen at a lower rpm.
flat top pistons(14:1cr), World aluminum block, 440-3X intake, 1.7 rockers, .825 lift cam with very mild ramps to save the springs.
made 920hp on the engine dyno, 778hp at the wheels, and has gone 8.33 @ 165 at around 2750lbs.
keep in mind that the 572-13's and the 440-1's have the valves in different places and at different angles, so new pistons would be required to switch from one style head to the other.
i'm going to be doing the same basic motor as that previous 572, but will be using the 440-1 CNC345's this time around.
i am interested to see what the power difference will be.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: steeldust]
#1178698
02/17/12 09:38 AM
02/17/12 09:38 AM
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Joined: Apr 2004
Posts: 12,339
somwhere
smokinwoody
I Live Here
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I Live Here
Joined: Apr 2004
Posts: 12,339
somwhere
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Quote:
I have not run it to see how fast it is i was running it in 6.0 class and i mist 4 races at start of points last year but when i did start running it was in the heat and it run 1/8 mile 5.94 et at 120 mph with 1.30 60ft and slowed it down a little with a 7531 msd and tuning but i may try to run in a real fast class that`s why i was asking about the 572-13 heads right now my car will go faster with tuning and good air here`s the car wt# 3,210 ladder bars Dana 60 456 gears 31x105w slicks 727 trans with brake 5,000 stall but leaving at 4,200 and shifting at 6,800 with alum block 13 to 1 comp steel rods 671-694 lift roller cam 1.6 T&D rockers and 440-1 out of the box no port work on alc with one 1050 Dom and take it easy on the motor down the track i think in good air and put the tune in it the car will run in the 5.70s or 5.80s around here this may not be to fast but for what it is it`s not to bad i guess 
the 572 I was going to build, was for my 63 Dodge...the intake was to be the Indy Tunnel with 2-1050 Dominators...I sold the Callies crank and the mega block...
you will need at least a 1250 carb and if you are to run a single, look into the 440-3X intake..I have that on my 499...a lot of guys that do run Nostalgia/SS use that rat roaster by Indy with a pair of 850's...and some are 15-1 compression...
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: bigtimeauto]
#1178699
02/17/12 10:47 AM
02/17/12 10:47 AM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
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Quote:
Quote:
Quote:
Quote:
http://bestmach.ipower.com/flowsheets/FDWPSO45001.pdf
Great comparison, 10K for pso's versus 5K for 572's. Did you run both of these heads to form this opinion?
part of that 10k would most likely be Ti valves, and the porting. I would like to know where a guy can by a set of 572 heads, cnc ported, with Ti valves and the GOOD valve train for $5,000. I spent a lot more than that for my 440-1 set up. Had I been smart, I could have waited a couple of seasons and picked up 200 hp for about $3500. That would be cheap!
A good engine is a combination of parts not just flow numbers. Will a set of PSO's really pick up 200 horsepower over a set of 572's?
Seeing as how my motor had 378 flow when dynoed,and the PSO is a dedicated race head with 460 cfm flow, I do not see why it couldn't. If I give myself a generous figure of 900 hp out of the 440-1s with 378 flow, and the PSO should be an all around better head for sure in areas other than total flow. 460 cfm in a PSO combo should generate 1100 hp if built well.
Now if you are gonna say I have no more than 850 hp based on performance, then the PSO would easily make 200 hp more at 1050 hp.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: steeldust]
#1178701
02/17/12 08:41 PM
02/17/12 08:41 PM
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Joined: Apr 2004
Posts: 1,056
Mt.Vernon IL
Twin Turbo Mower
super stock
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super stock
Joined: Apr 2004
Posts: 1,056
Mt.Vernon IL
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Here is the flow sheet for my 572-13's. I had jeff at modern do these.
Edit: Forgot to mention this is his cnc program of course.
Last edited by Twin Turbo Mower; 02/17/12 08:44 PM.
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Re: WHOS RUNNING 572-13 INDY HEADS
[Re: Twin Turbo Mower]
#1178703
02/18/12 07:08 AM
02/18/12 07:08 AM
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Joined: Jan 2003
Posts: 2,933
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,933
A shed in England
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Quote:
Here is the flow sheet for my 572-13's. I had jeff at modern do these.
Edit: Forgot to mention this is his cnc program of course.
Impressive. Very close to B1-MC's and the B1's have a bigger inlet too.
I'm going to stick my neck on the line and say the -13's are comparable to the MC's 
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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and sense went to a bigger carb. and solve that problem.I'll be watching this thread hoping to learn something.........Good luck with what ever to decide to do...... 
