Discontinued Magnum R/T Head #P5007140 vs P5155469
#1879082
07/27/15 01:30 PM
07/27/15 01:30 PM
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Joined: Jul 2015
Posts: 25 Belmar, NJ
mr5racing
OP
member
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OP
member
Joined: Jul 2015
Posts: 25
Belmar, NJ
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We are trying to run an asphalt modified against a field of chevy spec motors with Dart Iron Eagle 200's. We have a lightweight bottom end vs the heavy chevys. My question is our rules only allow the Magnum R/T 7140 head that I cannot find anywhere. Mopar Performance came out with its replacement the P5155469. The problem is we are allowed 180cc head no modifications and the new head is 172cc. the old head was flowed at Shady Dell at 245@ 28in of water. Has anyone flowed these newer performance heads 5469? if im going to petition the tech inspectors to allow me to run the newer head we may have to change pistons to get to the rule 10:1 or cut the heads and manifold to fit. I know im looking for a needle in a haystack looking for the old R/T heads but Im looking.
Last edited by mr5racing; 07/27/15 02:03 PM.
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: mr5racing]
#1879231
07/27/15 04:04 PM
07/27/15 04:04 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Kinda hard to tell anything from the pics on the sellers websites. Some say AL some say iron, some look like stock magnums some look like an EQ so unless someone posts an actual picture it would be hard to determine what you really get.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: HotRodDave]
#1879409
07/27/15 07:26 PM
07/27/15 07:26 PM
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Joined: Aug 2003
Posts: 4,984 new jersey usa
11secdart
master
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master
Joined: Aug 2003
Posts: 4,984
new jersey usa
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I don`t know much about them but I got a Jegs sale email alert and it said they had a Magnum replacement head, I believe it said its a replacement for the discontinued M/P Magnum head. Maybe someone here knows more about them.
68 Dart 410 / 904 92 D150 original owner 21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4 23 Audi Q5 16 Honda HRV
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: 11secdart]
#1880113
07/28/15 03:49 PM
07/28/15 03:49 PM
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Joined: Jan 2003
Posts: 2,077 Oklahoma City
Jwilli500
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,077
Oklahoma City
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I saw that too. I believe those are the EQ (Enginequest) heads.
Last edited by Jwilli500; 07/28/15 03:55 PM.
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: mr5racing]
#1880127
07/28/15 04:19 PM
07/28/15 04:19 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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There is a pair in the for sale section right now, if I had any money I would have called the guy before telling you.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: mr5racing]
#1880140
07/28/15 04:36 PM
07/28/15 04:36 PM
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Joined: Aug 2003
Posts: 3,245 Between a rock & a hard place
cudadoug
master
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master
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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We are trying to run an asphalt modified against a field of chevy spec motors with Dart Iron Eagle 200's. We have a lightweight bottom end vs the heavy chevys. My question is our rules only allow the Magnum R/T 7140 head that I cannot find anywhere. Mopar Performance came out with its replacement the P5155469. The problem is we are allowed 180cc head no modifications and the new head is 172cc. the old head was flowed at Shady Dell at 245@ 28in of water. Has anyone flowed these newer performance heads 5469? if im going to petition the tech inspectors to allow me to run the newer head we may have to change pistons to get to the rule 10:1 or cut the heads and manifold to fit. I know im looking for a needle in a haystack looking for the old R/T heads but Im looking. How come the Chevies can run an aftermarket head and you can't?? If it's a "cast iron" only rule then the RHS or EQ heads are the ticket. You can enhance the valve and VJ with the as supplied 1.92 intakes and flow just as well.
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: mr5racing]
#1880150
07/28/15 04:55 PM
07/28/15 04:55 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Magnum R/T heads are aftermarket.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: mr5racing]
#2153222
09/12/16 06:50 PM
09/12/16 06:50 PM
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Joined: Jan 2003
Posts: 11,713 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,713
Portage,michigan
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I have a set of those heads on my 318. Have 2.02 valves in them
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: Discontinued Magnum R/T Head #P5007140 vs P5155469
[Re: mr5racing]
#2156488
09/17/16 10:30 PM
09/17/16 10:30 PM
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Joined: Aug 2009
Posts: 235 Central Mississippi
mopar97
enthusiast
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enthusiast
Joined: Aug 2009
Posts: 235
Central Mississippi
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Please check your email mr5racing. Thanx Allen
Mopar born, Mopar breed, when I die, call me Mopar dead!
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