Re: 426 hemi dual plug heads p4120960
[Re: dart games]
#2550574
09/16/18 11:42 AM
09/16/18 11:42 AM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,592
Great Neck,LI,new york
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Had mine on a shelf in the garage for over 25 years.Finally put them on last year!
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: 426 hemi dual plug heads p4120960
[Re: dart games]
#2550666
09/16/18 04:25 PM
09/16/18 04:25 PM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,592
Great Neck,LI,new york
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Never had them flowed,Might be able to get them from Steve Sanchez. That are fueler heads from back in the day........ They work GREAT! ![smoke smoke](/ubbthreads/images/graemlins/custom/smoke.gif)
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: 426 hemi dual plug heads p4120960
[Re: cudame]
#2730002
01/04/20 02:32 PM
01/04/20 02:32 PM
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Joined: Aug 2003
Posts: 43,307 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,307
Bend,OR USA
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Some body misinformed you on Dart not having their own aluminum hemi head castings, it wouldn't surprise me that they had more than one dual plug casting number heads also ![scope scope](/ubbthreads/images/graemlins/custom/scope.gif) I assembled a blown street hemi motor for a customer in SO CA back in the mid 1990s that had a set of those heads, his family owned several Dodge dealerships and furnished all the parts, he bought those heads form Direct Connection along with a KB street hemi block ![shruggy shruggy](/ubbthreads/images/graemlins/custom/shruggy.gif)
Last edited by Cab_Burge; 01/04/20 02:35 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 426 hemi dual plug heads p4120960
[Re: cudame]
#2730150
01/05/20 12:27 AM
01/05/20 12:27 AM
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Joined: Jan 2012
Posts: 2,678 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,678
Stuttgart, Arkansas
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I THOUGHT THEY DIDN'T MAKE DART HEADS SOMEONE TOLD ME THAT ARE YOU SURE Come on dude. They were even in the MP catalog.
2011 Drag Pak Challenger
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Re: 426 hemi dual plug heads p4120960
[Re: dart games]
#2730152
01/05/20 12:35 AM
01/05/20 12:35 AM
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Joined: Jan 2012
Posts: 2,678 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,678
Stuttgart, Arkansas
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i have dart heads on this motor,looking for dual plug mullens heads I assume you mean 433 heads? AKA twin plug heads, AKA replacement heads, AKA Ross Foundry heads. Mullens was a head porting shop. They ported most of the top hemi heads for a long time. I feel you will make more power with the heads they make today.
2011 Drag Pak Challenger
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Re: 426 hemi dual plug heads p4120960
[Re: Cab_Burge]
#2730171
01/05/20 03:38 AM
01/05/20 03:38 AM
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Joined: Jan 2011
Posts: 680 st.louis,mo.
dart games
OP
mopar
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OP
mopar
Joined: Jan 2011
Posts: 680
st.louis,mo.
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hemi -itis,same heads as mine,has total flow on them,after i look them up,says dart made them,thats what i have,but on my header flange can only get 4 bolts to line up in them,im sure its a old fuel heads,they work though ,there not like the 433 heads
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Re: 426 hemi dual plug heads p4120960
[Re: dart games]
#2730537
01/06/20 01:17 PM
01/06/20 01:17 PM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,592
Great Neck,LI,new york
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hemi -itis,same heads as mine,has total flow on them,after i look them up,says dart made them,thats what i have,but on my header flange can only get 4 bolts to line up in them,im sure its a old fuel heads,they work though ,there not like the 433 heads I was able to port the large header flange to make them work.The exaust port only uses half of the port on the flanges.They also showed a little daylight on the top of the port flang requiring adding some material on the exterior top of the tube to flange. Not sure if it effects my performance but I have to work with what I have. As much as I would like a new set of headers it's just not in the very limited budget. I do have an issue getting the flanges to seal well on the heads.
Last edited by hemi-itis; 01/06/20 01:20 PM.
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: 426 hemi dual plug heads p4120960
[Re: Cab_Burge]
#2730789
01/07/20 01:16 PM
01/07/20 01:16 PM
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Joined: Jan 2003
Posts: 3,505 DFW
mr_340
master
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master
Joined: Jan 2003
Posts: 3,505
DFW
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One set of heads I've used from Dart where the D4 heads, I was not impress with the results on that motor with those heads ![down down](/ubbthreads/images/graemlins/custom/down.gif) I don't remember the casting numbers now, sorry The D-4 heads were cast iron, raised exhaust port and for NASCAR racing. I think the nitro monkeys used them in the 1970s as well.
Floyd Lippencott IV
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Re: 426 hemi dual plug heads p4120960
[Re: mr_340]
#2730902
01/07/20 08:00 PM
01/07/20 08:00 PM
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Joined: Aug 2003
Posts: 43,307 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,307
Bend,OR USA
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One set of heads I've used from Dart where the D4 heads, I was not impress with the results on that motor with those heads ![down down](/ubbthreads/images/graemlins/custom/down.gif) I don't remember the casting numbers now, sorry The D-4 heads were cast iron, raised exhaust port and for NASCAR racing. I think the nitro monkeys used them in the 1970s as well. I was told by the owner that they where D-4 heads ![confused confused](/ubbthreads/images/graemlins/custom/confused.gif) , They were aluminum and had a raised exhaust port that was about half the size of a street hemi exhaust port. I wonder if they could have been the later D6 heads for Pro Stock? ![confused confused](/ubbthreads/images/graemlins/custom/confused.gif) His family owned several Chrysler, Dodge and Plymouth dealer ships in SO CA in the 1960s up to 2000 or so ![shruggy shruggy](/ubbthreads/images/graemlins/custom/shruggy.gif) I got lucky to be picked to assemble and dyno test that motor ![grin grin](/ubbthreads/images/graemlins/custom/grin.gif)
Last edited by Cab_Burge; 01/07/20 08:01 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 426 hemi dual plug heads p4120960
[Re: Cab_Burge]
#2730952
01/07/20 10:50 PM
01/07/20 10:50 PM
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Joined: Jan 2012
Posts: 2,678 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,678
Stuttgart, Arkansas
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Could have been D-6's. They look like D-4's but are aluminum and have twin plugs. Or they could have been Darts like you first spoke of, that had been ported to D-4 specs. That was a popular exhaust port at the time.
2011 Drag Pak Challenger
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