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MSD 7AL-2 boxes #178034
12/29/08 03:24 PM
12/29/08 03:24 PM
Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer Offline OP
master
Bob_Coomer  Offline OP
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Joined: Nov 2003
Posts: 6,293
Rock Springs
My father-In-Law has a a 7AL-2 part # 42626, which comes with a MSD Coil Pro Power. I looked on the Web site for info, but all I found was the 7AL-2 Plus, which is probably a updated version. This box was serviced By MSD years ago, but has been self ed since then.

So here is a few questions.
I assume this is the correct coil for this box? Can this box be run on the street? I don't think so, but maybe with a different compatible coil?

Are these boxes dependable, and reliable?

Thanks
Rapid


[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
Re: MSD 7AL-2 boxes [Re: Bob_Coomer] #178035
12/29/08 03:34 PM
12/29/08 03:34 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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MR_P_BODY  Offline
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Posts: 52,972
Romeo MI
Quote:

My father-In-Law has a a 7AL-2 part # 42626, which comes with a MSD Coil Pro Power. I looked on the Web site for info, but all I found was the 7AL-2 Plus, which is probably a updated version. This box was serviced By MSD years ago, but has been self ed since then.

So here is a few questions.
I assume this is the correct coil for this box? Can this box be run on the street? I don't think so, but maybe with a different compatible coil?

Are these boxes dependable, and reliable?

Thanks
Rapid




Basicly I dont think you can run that box on the
street, it says that you need to run the pro power
coil and they say the pro power coil shouldnt be
run on the street or for extended periods of time.
Thats the same box I run in my racecar

Re: MSD 7AL-2 boxes [Re: MR_P_BODY] #178036
12/29/08 03:36 PM
12/29/08 03:36 PM
Joined: Apr 2005
Posts: 1,091
Col. Ohio
T
The Avg. Valiant Offline
super stock
The Avg. Valiant  Offline
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T

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Col. Ohio


good box though

Re: MSD 7AL-2 boxes [Re: The Avg. Valiant] #178037
12/29/08 04:00 PM
12/29/08 04:00 PM
Joined: Jan 2003
Posts: 6,314
The Swamp
MegaDart Offline
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Posts: 6,314
The Swamp
yes they are good boxes, I run them in the Dart. I run that coil on both my dragster and doorcar.

Re: MSD 7AL-2 boxes [Re: MR_P_BODY] #178038
12/29/08 04:21 PM
12/29/08 04:21 PM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline
I Live Here
Dragula  Offline
I Live Here

Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Quote:

Quote:

My father-In-Law has a a 7AL-2 part # 42626, which comes with a MSD Coil Pro Power. I looked on the Web site for info, but all I found was the 7AL-2 Plus, which is probably a updated version. This box was serviced By MSD years ago, but has been self ed since then.

So here is a few questions.
I assume this is the correct coil for this box? Can this box be run on the street? I don't think so, but maybe with a different compatible coil?

Are these boxes dependable, and reliable?

Thanks
Rapid




Basicly I dont think you can run that box on the
street, it says that you need to run the pro power
coil and they say the pro power coil shouldnt be
run on the street or for extended periods of time.
Thats the same box I run in my racecar





Gotta look at which coil I am running, but I have been running a 7AL-2 on the street since '96, and it was in the car when I got it. All I can say is, you need a good set of wires, or you will spit half your teeth out if you get hit with it....It is far better than the 6AL, and can tolerate a richer fuel mixture without fouling plugs.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: MSD 7AL-2 boxes [Re: Dragula] #178039
12/29/08 05:35 PM
12/29/08 05:35 PM
Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer Offline OP
master
Bob_Coomer  Offline OP
master

Joined: Nov 2003
Posts: 6,293
Rock Springs
Quote:

Quote:

Quote:

My father-In-Law has a a 7AL-2 part # 42626, which comes with a MSD Coil Pro Power. I looked on the Web site for info, but all I found was the 7AL-2 Plus, which is probably a updated version. This box was serviced By MSD years ago, but has been self ed since then.

So here is a few questions.
I assume this is the correct coil for this box? Can this box be run on the street? I don't think so, but maybe with a different compatible coil?

Are these boxes dependable, and reliable?

Thanks
Rapid




Basicly I dont think you can run that box on the
street, it says that you need to run the pro power
coil and they say the pro power coil shouldnt be
run on the street or for extended periods of time.
Thats the same box I run in my racecar





Gotta look at which coil I am running, but I have been running a 7AL-2 on the street since '96, and it was in the car when I got it. All I can say is, you need a good set of wires, or you will spit half your teeth out if you get hit with it....It is far better than the 6AL, and can tolerate a richer fuel mixture without fouling plugs.




That's great news, I can get this thing for a song & a Dance...
If you would check to see what coil your running...I was thinking a Blaster II was compatible, and I just might get away with it on the street
I spent about 30 minutes on hold with MSD, and finally just hung up...


[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
Re: MSD 7AL-2 boxes [Re: Bob_Coomer] #178040
12/29/08 05:40 PM
12/29/08 05:40 PM
Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
B
blownzoom440 Offline
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
i ran the mallery coil ending with 440 for a few yrs with my msd 7al-2 but not on the street.the mallery is for extended use run time.

4908866-Picture027.jpg (288 downloads)
Last edited by METAL STORM; 12/29/08 05:42 PM.
Re: MSD 7AL-2 boxes [Re: blownzoom440] #178041
12/29/08 06:05 PM
12/29/08 06:05 PM
Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
Dragula Offline
I Live Here
Dragula  Offline
I Live Here

Joined: May 2004
Posts: 12,379
Taxes & Virus's R-US, NY
The coil is an MSD blaster 2. Both have been in the car since I bought it, and I have had the unlucky misfortune of being lit up by both, and the 6AL feel like half the zap of a 7AL...Just my two cents for what its worth.


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: MSD 7AL-2 boxes [Re: blownzoom440] #178042
12/29/08 06:06 PM
12/29/08 06:06 PM
Joined: Nov 2004
Posts: 6,890
North Alabama
M
Monte_Smith Offline
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Monte_Smith  Offline
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Joined: Nov 2004
Posts: 6,890
North Alabama
The 7AL-2 will be fine for street use, you just need a constant duty coil, which the Pro-Power is not. Use the Pro-Power HVC coil, part number 8251.

Monte

Re: MSD 7AL-2 boxes [Re: Monte_Smith] #178043
12/29/08 06:24 PM
12/29/08 06:24 PM
Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
B
blownzoom440 Offline
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
Quote:

The 7AL-2 will be fine for street use, you just need a constant duty coil, which the Pro-Power is not. Use the Pro-Power HVC coil, part number 8251.

Monte



i was told by a tech at the track that the Pro-Power HVC coil, part number 8251 is the same just american made as the pro power.i did not check the winding ratio or other details.

Re: MSD 7AL-2 boxes [Re: Bob_Coomer] #178044
12/29/08 06:43 PM
12/29/08 06:43 PM
Joined: Jan 2003
Posts: 30,945
Oregon
A
AndyF Offline
I Win
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Posts: 30,945
Oregon
The MSD website lists six different coils as compatable with the 7AL-2. Of the six, the 8252 is probably the best one for street duty but other might be just as good. The 8207 is another street/strip coil that is compatable with the 7AL-2.

The 7AL-2 can be purchased a lot cheaper from Mopar Performance than from MSD. I think the discount is about 40% when puchased as a MP part number which is huge.

I'm currently running the 7AL-2Plus with the 8261 on my dyno mules. The 8261 coil can probably be used as a welder in a pinch so you really do not want to grab a plug wire while you're standing in a puddle.

Last edited by AndyF; 12/29/08 06:44 PM.
Re: MSD 7AL-2 boxes [Re: AndyF] #178045
12/29/08 06:48 PM
12/29/08 06:48 PM
Joined: Sep 2006
Posts: 3,007
Sac, CA
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mopowers Offline
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Posts: 3,007
Sac, CA
Quote:



The 7AL-2 can be purchased a lot cheaper from Mopar Performance than from MSD. I think the discount is about 40% when puchased as a MP part number which is huge.





Do you happen to have a part number? I can't seem to find it. It looks to me like Mopar perf. only has the 6AL version.

Re: MSD 7AL-2 boxes [Re: mopowers] #178046
12/29/08 06:53 PM
12/29/08 06:53 PM
Joined: Jan 2003
Posts: 30,945
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

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Posts: 30,945
Oregon
I don't remember the MP number but just go to the Mancini website and look under ignitions. The MP version is $350 while the MSD part number is $560.

While we're on the subject, here is a coil bracket that I made for the HVC style coils. This bracket bolts to the end of the cylinder head. I also did a bracket for the Pro Power coil but I'll have to dig around for that picture.

Re: MSD 7AL-2 boxes [Re: AndyF] #178047
12/29/08 07:02 PM
12/29/08 07:02 PM
Joined: Sep 2006
Posts: 3,007
Sac, CA
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mopowers Offline
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Sac, CA
That bracket is slick.

It's amazing to me that the same product can have two totally different prices.

Re: MSD 7AL-2 boxes [Re: blownzoom440] #178048
12/29/08 08:20 PM
12/29/08 08:20 PM
Joined: Nov 2004
Posts: 6,890
North Alabama
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Monte_Smith Offline
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Joined: Nov 2004
Posts: 6,890
North Alabama
Quote:

Quote:

The 7AL-2 will be fine for street use, you just need a constant duty coil, which the Pro-Power is not. Use the Pro-Power HVC coil, part number 8251.

Monte



i was told by a tech at the track that the Pro-Power HVC coil, part number 8251 is the same just american made as the pro power.i did not check the winding ratio or other details.


I have no idea about that. All I know is what the catalog says. It says that the 8251 is compatible and is made for extended use. There are other compatible part #s as well, but the 8251 was about the cheapest. The HVC Andy mentioned is nearly 200 bucks.

Monte

Re: MSD 7AL-2 boxes [Re: mopowers] #178049
12/29/08 11:22 PM
12/29/08 11:22 PM
Joined: Jan 2003
Posts: 30,945
Oregon
A
AndyF Offline
I Win
AndyF  Offline
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Posts: 30,945
Oregon
Here is the bracket for the 8201 coil. The 8201 coil is dinky compared to the HVC unit.

4909812-8201.jpg (746 downloads)
Re: MSD 7AL-2 boxes [Re: Monte_Smith] #178050
12/30/08 01:16 AM
12/30/08 01:16 AM
Joined: Aug 2005
Posts: 751
Southington Ct.
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turbobitt Offline
super stock
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Joined: Aug 2005
Posts: 751
Southington Ct.
Quote:

The 7AL-2 will be fine for street use, you just need a constant duty coil, which the Pro-Power is not. Use the Pro-Power HVC coil, part number 8251.

Monte




I agree because I have been using the marine version 7ML-2 on extended use with no issues but using the high vibration blaster coil. I was concerned about the extended use and contacted MSD before buying and they assured me it would be OK.


1970 Challenger w/572 Hemi street car and my pride and joy. 1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno. 1976 Cee Bee Avenger Jet Boat - 460 Ford powered.






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