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Requesting guidance on a new build....
#1623120
05/21/14 05:49 PM
05/21/14 05:49 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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I'm starting a new build for drag racing, going bigger, and would like some insight/opinions on a combination that's been around a while. A 572. I've got an aluminum KB block on order. It should be here shortly. I have a set of original B1's with T&D rockers. They've had minor port work done. Mainly to get the same CFM out of each port. I will be running carburated alcohol. Hopefully before too long ill have the info on what the heads flow so I can get a new Bullet cam ordered. Any info or insight would be greatly appreciated. Oops I almost forgot. It will be going in my 68 Dart(drag race only). It has an ATI powerglide and Dana 60 with Moser internals. It has 4.56's in it now but will be changed over to 4.30's. 
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable! 
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Re: Requesting guidance on a new build....
[Re: pittsburghracer]
#1623122
05/21/14 07:22 PM
05/21/14 07:22 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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My 68 Dart had a 556 Mega-block in it. I wish I could take credit for it but I bought it that way. It was to have only 20 passes on a fresh motor. Buyer beware! The motor was way tired and had to be gone thru. bla bla bla... Anyways the car weighs 2835 with we in it. The converter stalls out 5300ish. My Dart is a big tire car=32x14.5w, ladder bar set up. That may have to be changed to a 4-link. Its a full chassis car.
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623123
05/22/14 07:13 AM
05/22/14 07:13 AM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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 So any suggestions on who I should go with on the pistons, rods, and crank? I want to keep the max RPM to around 7000 to 7100, if that helps. If there is something I should keep in mind as well, please speak your mind. 
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623124
05/22/14 02:15 PM
05/22/14 02:15 PM
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Joined: Aug 2003
Posts: 43,163
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,163
Bend,OR USA
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What I know about methanol is to shoot for 15.0 to 1 or slightly higher for drag racing. I have freshen a 572 race gas motor that had 15.0 to 1 with flat tops with a set of 440-1, I don't remember the CC of the heads though  I like and use steel rods, that compression ratio is not hard to achieve with a big C.I. motor with flat tops with valve reliefs  I had a set of B1 with big combustion chambers, around 72 CC, Koffels wanted to make them 51 or 52.0 CC  , if I'm remebering correctly  Check your CC first before ordering pistons
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Requesting guidance on a new build....
[Re: Cab_Burge]
#1623125
05/22/14 02:32 PM
05/22/14 02:32 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Cab_Burge- Yeah I've been wanting to run steel rods. What brand do you recommend? Also piston brand? I would like to get some life outta this girl too. I know it can be done. I just need to be particular on the build and parts used. The major dilemma, of course, is I don't have a bottomless wallet to fund my horrible addiction. 
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623126
05/22/14 04:49 PM
05/22/14 04:49 PM
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Joined: Feb 2005
Posts: 20,174
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
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I used Wisco Pistons in my 572 and they were ordered with the 440-1 valve reliefs and Tom Hemphile cut them for my B1 valve reliefs so I could run either head. My Daytona ran 8.48@159mph with the Indy heads and very low compression and should be very low 8's I would think with the B1 heads when I get the car back out. I had a VERY NICE set of Crower rods but the rod bolts wouldn't clear the cam so I used a set of K1 rods with all the upgrades but I don't beat the piss out of my stuff for that last few hundredths.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Requesting guidance on a new build....
[Re: pittsburghracer]
#1623127
05/22/14 05:08 PM
05/22/14 05:08 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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pittsburghracer-
What rod journal size are you using? K1 rods look very nice. I've never held one in my hand. Just seen pics. Have you heard of Molnar rods? I've been kinda checking them out. I would LOVE a set of Corrillo's but my wallet doesn't.
I don't like beating the hell out of my stuff either. That's why I've opted to run lower RPM.
BTW... how heavy is your Daytona? etc....
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: pittsburghracer]
#1623129
05/22/14 05:59 PM
05/22/14 05:59 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Your Daytona is quite a bit lighter than my Dart. My glide has a 1.76 gear set in it as well.
Have you seen any issues at all with the 572? anything to pay particular attention to? Or needs to be done differently when building one? Sorry for all the questions...
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: pittsburghracer]
#1623131
05/22/14 06:31 PM
05/22/14 06:31 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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Oh crap! that makes my sick.  Sorry man....
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623134
05/22/14 07:11 PM
05/22/14 07:11 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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With the 572 and original B1s your gonna need to be ported pretty decent to stay with that ci and on alky... yes I would stay with a H-beam rod... compression wise I would stay in the 14.5-15.0 range... a bracket car likes the compression if you have to play the line on the top end(compression responds quicker)... on the cam I would wait and see what the head flow looks like before you look at cams 
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Re: Requesting guidance on a new build....
[Re: MR_P_BODY]
#1623135
05/22/14 07:26 PM
05/22/14 07:26 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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pittsburghracer-
That's way cool!!
On C-16 race fuel, my old fat girl with the 556 in it ran [Email]9.27@143.35[/Email] with a 1.31 60' [Email]DA@3622'[/Email]
Were you running a vacuum pump on yours?
Last edited by 1320Dart; 05/22/14 07:36 PM.
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: MR_P_BODY]
#1623136
05/22/14 07:34 PM
05/22/14 07:34 PM
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Joined: May 2014
Posts: 503
Idaho
1320Dart
OP
mopar
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OP
mopar
Joined: May 2014
Posts: 503
Idaho
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MR_P_BODY-
Ported pretty decent, like what are we talking?
Greg ----------------------------------------------------------------- Cost is irrelevant, making memories is far more valuable!
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623137
05/22/14 08:25 PM
05/22/14 08:25 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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Quote:
MR_P_BODY-
Ported pretty decent, like what are we talking?
I would look at a full port job or close to it..
something like 360cfm or more... the alky takes up
volume in the port since you run 2X the amount of alky
vs gas
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Re: Requesting guidance on a new build....
[Re: 1320Dart]
#1623138
05/22/14 08:34 PM
05/22/14 08:34 PM
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Joined: Aug 2009
Posts: 456
corpus christi tex
Cheatham
mopar
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mopar
Joined: Aug 2009
Posts: 456
corpus christi tex
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Quote:
I'm starting a new build for drag racing, going bigger, and would like some insight/opinions on a combination that's been around a while. A 572. I've got an aluminum KB block on order. It should be here shortly. I have a set of original B1's with T&D rockers. They've had minor port work done. Mainly to get the same CFM out of each port. I will be running carburated alcohol. Hopefully before too long ill have the info on what the heads flow so I can get a new Bullet cam ordered. Any info or insight would be greatly appreciated.
Oops I almost forgot. It will be going in my 68 Dart(drag race only). It has an ATI powerglide and Dana 60 with Moser internals. It has 4.56's in it now but will be changed over to 4.30's.
Not that i can offer any advise just that im doing a similar project as you, B1 572 on alcohal, comp. little over 15.1, 2 1/4 custom headers 4.10 dana on 14.5x32 car weighs about 2500lb
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