Re: INDY 572-13 HEADS ?
[Re: Randy..]
#1264484
07/09/12 01:00 AM
07/09/12 01:00 AM
|
Joined: Jun 2010
Posts: 469 Tennessee
steeldust
OP
mopar
|
OP
mopar
Joined: Jun 2010
Posts: 469
Tennessee
|
Quote:
if gonna make that big a change $$ wise go on up to a set of B1s
I think with 572s i can still use my intake and tray and pistons?
|
|
|
Re: INDY 572-13 HEADS ?
[Re: Chris'sBarracuda]
#1264486
07/09/12 01:24 AM
07/09/12 01:24 AM
|
Joined: Jun 2010
Posts: 469 Tennessee
steeldust
OP
mopar
|
OP
mopar
Joined: Jun 2010
Posts: 469
Tennessee
|
Quote:
It would be cheaper to port the -1's
Chris..
Do you think they will make 50 to 100 more HP then what they are making now ?
|
|
|
Re: INDY 572-13 HEADS ?
[Re: steeldust]
#1264487
07/09/12 01:47 AM
07/09/12 01:47 AM
|
Joined: Dec 2006
Posts: 3,667 Arizona
Chris'sBarracuda
master
|
master
Joined: Dec 2006
Posts: 3,667
Arizona
|
Quote:
Quote:
It would be cheaper to port the -1's
Chris..
Do you think they will make 50 to 100 more HP then what they are making now ?
Not sure about hp numbers, but I think that a ported -1 would out flow an ootb 572-13..
Check these ported numbers.. The 572-13 barely out flows the -1's both ported..
Check Modern and Porter to compare.. I believe they're both about 375 @ .700 lift..
http://users.erols.com/srweiss/tablehdc.htm#Chrysler_Big_Block
Like I said, I would just port the -1's.. On a 572" with stock 440-1's, you are giving up quite a bit of power. So 50-100hp I would guess is possible.
Chris..
|
|
|
Re: INDY 572-13 HEADS ?
[Re: Chris'sBarracuda]
#1264488
07/09/12 02:05 AM
07/09/12 02:05 AM
|
Joined: Jan 2003
Posts: 19,537 Las Vegas
Al_Alguire
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 19,537
Las Vegas
|
IMO dont waste your money on the -13 head. Not worth the expense, better options ou tthere for sure. As Chris said porting what oyu have and getting a cam to match that will save you money and likely gain you a good deal of HP as well.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
|
|
|
Re: INDY 572-13 HEADS ?
[Re: steeldust]
#1264491
07/09/12 06:23 AM
07/09/12 06:23 AM
|
Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 10,081
Frostbitefalls MN (Rocky&Bullw...
|
If you have no porting, the motor should pick up a solid 100 hp on a race motor with 572 cubes. I am making about 900 hp, or enough to go consistent 8.80s with 3050 lbs car and driver. You should be able to match that power level with a full port job. After that it will get expensive, because the 572 needs new pistons, and at that point you might as well sell what you have and step up to a B1 head. A B1Mc will make over 1,000 hp, ask Al for details.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
|
|
|
Re: INDY 572-13 HEADS ?
[Re: gregsdart]
#1264492
07/09/12 07:31 AM
07/09/12 07:31 AM
|
Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
master
|
master
Joined: Jan 2003
Posts: 2,981
A shed in England
|
As mentioned, you'll be better off porting the heads you've got. Personally I wouldn't upgrade from -1's to -13's I'd go for at least B1-MC's. Again this has been mentioned but, you will need new pistons as the valve reliefs are bigger and in a different place, also I'm not sure if the headers will swop over either, the -13's are cut back some along the exhaust side face. Also you would be better off going to the 3X intake as the others don't seem to have a lot of material to match the roof of the intake port. For the gains I'm not sure it's worth it. If and when I get round to upgrading, B1-PSO's will be on the top of the list.
'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
|
|
|
Re: INDY 572-13 HEADS ?
[Re: Tig]
#1264493
07/09/12 09:26 AM
07/09/12 09:26 AM
|
Joined: Apr 2004
Posts: 1,056 Mt.Vernon IL
Twin Turbo Mower
super stock
|
super stock
Joined: Apr 2004
Posts: 1,056
Mt.Vernon IL
|
Quote:
As mentioned, you'll be better off porting the heads you've got. Personally I wouldn't upgrade from -1's to -13's I'd go for at least B1-MC's. Again this has been mentioned but, you will need new pistons as the valve reliefs are bigger and in a different place, also I'm not sure if the headers will swop over either, the -13's are cut back some along the exhaust side face. Also you would be better off going to the 3X intake as the others don't seem to have a lot of material to match the roof of the intake port. For the gains I'm not sure it's worth it. If and when I get round to upgrading, B1-PSO's will be on the top of the list.
I have a set of tti 2 1/8 step headers bolted to my motor now fit the same as the 2 inch I had on the -1's. I too would just port out the -1's If I were him. Only reason I upgraded to these was it was the biggest head I could fit under the stock heed with no scoop and use off the shelf headers. Modern cut the exhaust exits the same as the -1's not like indy does so I could use the headers I wanted. I would have gone with a b-1 head but it would not have cleared my factory hood.
|
|
|
Re: INDY 572-13 HEADS ?
[Re: moparniac]
#1264495
07/09/12 11:59 AM
07/09/12 11:59 AM
|
Joined: Jan 2003
Posts: 16,936 NC
440Jim
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,936
NC
|
As other's have mentioned, the piston valve reliefs are different for 572-13 heads. 13 degree vs 15 degree, moved location.
For the real step-up, the B1 originals would be my choice. But if you have fairly new 440-1 heads, and you said no porting, there may be room for much improved porting to around 375 cfm with the 2.25" intake valve. I don't know if your current port shape would interfere with the current CNC porting programs for 440-1 heads. OOTB 440-1 don't flow well at all, so a CNC would be a big improvement, IMO.
You will need to check your piston valve reliefs if you change to the 440-1 2.25" intake valve. Some are OK, some are not.
|
|
|
Re: INDY 572-13 HEADS ?
[Re: MRMOPAR622]
#1264497
07/09/12 01:17 PM
07/09/12 01:17 PM
|
Joined: Jan 2003
Posts: 684 St. Charles, MO.
Slingshot383
mopar
|
mopar
Joined: Jan 2003
Posts: 684
St. Charles, MO.
|
The B-1's are far from a bolt on set of heads, they are a lot more work to get a total package assembled than the switch to the 572-13's.
1994 Undercover Chassis 125" altered
stack injected big block, soon blown and injected
Member of The Torque and Recoil Club
|
|
|
Re: INDY 572-13 HEADS ?
[Re: MRMOPAR622]
#1264500
07/09/12 03:23 PM
07/09/12 03:23 PM
|
Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
master
|
master
Joined: Jan 2003
Posts: 2,981
A shed in England
|
Quote:
Holy Crap,I spent my hard earned $$$ buying not just 1 set but 2 sets of 572-13 heads,when I could have save $$$ by using 440-1 heads I just let 1 set go with my spare engine,but you can bet the farm on this I won't be replacing them with a set of 440-1 heads.
I would run another set of -13's anyday, It's not all about flow numbers.
'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
|
|
|
Re: INDY 572-13 HEADS ?
[Re: moparniac]
#1264501
07/09/12 03:26 PM
07/09/12 03:26 PM
|
Joined: Jan 2003
Posts: 2,981 A shed in England
Tig
master
|
master
Joined: Jan 2003
Posts: 2,981
A shed in England
|
Quote:
Anyone have flow numbers on the -13 385cc with a 4.5inch bore?
'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
|
|
|
|
|