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MSD 6425 6AL Digital Ignition Control Box

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Specs
GTIN Code:
085132064250
MSD 6425 6AL Digital Ignition Control Box
MSD 6425 6AL Digital Ignition Control Box
MSD 6425 6AL Digital Ignition Control Box
MSD 6425 6AL Digital Ignition Control Box

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Details

Reviews (4)

Q & A (4)

What's in the Box

Info

Save BIG during Happy HolleyDays! For a limited time receive up to 20% off select Holley, Demon, Earls, Flowtech, Hooker, Mallory, Mr. Gasket, MSD, NOS, Quick Time, and Weiand products. Sale prices valid thru 12/31/16.

The MSD Digital 6AL features a higher output with 530 primary volts and 135mJ of spark energy. Efficient components use less current to produce more power. Set an rpm limit on the MSD 6AL rev limiter with two rotary dials. Has the same bolt pattern as the original 6AL, but with a lower profile housing. Built-in LED for system checks. All wires exit the same side through a locked, sealed connector. Compatible with 4, 6 and 8-cylinder engines.

547-6425 Instructions (PDF) 

MSD Tech Bulletin

Learn more about the benefits and features of the MSD 6AL Digital Ignition Control Box by reading StangTVs tech article.  MSDs Newest 6AL Takes Conventional Ignitions into the Digital Age.

Learn more about determining the proper MSD ignition control box for your application by reading our tech article. The Differences Between 6 Series MSD Ignition Control Units.

Specs

  • Spark Energy:  135-145 mJ per spark 
  • Primary Voltage:  520-540 Volts 
  • Secondary Voltage:  45,000 Volts 
  • Spark Series Duration:  20 degree Crankshaft Rotation 
  • RPM Range:  15,000 RPM with 14.4 Volts 
  • Voltage Required:  12-15 Volts, 7 Volt Start 
  • Current Draw:  .7 Amp per 1,000 RPM 
  • Weight and Size:  1.7 lbs., 8"L x 4"W x 1.825"H 

Customer Reviews

Rated 5 out of 5 by 4 reviewers.
RATING BREAKDOWN
4 reviews
5 Stars
4
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Plyjunkie
Verified Purchaser
Bakersfield, CA

MSD quality

August 24, 2016
Same mounting as the early model
Pros:
  • Replaces Earlier Model
Cons:
  • None
Yes, I recommend this product.
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tim
Verified Purchaser
Verified Reviewer
argentville,mo

MSD is the only way to go

November 02, 2015
MSD is what I use on all of the motors I build
Pros:
  • none better
Yes, I recommend this product.
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buddy
Verified Purchaser
girard il

i would buy this product again and told friends

July 13, 2015
works great no problem with it
Yes, I recommend this product.
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johnnyb45887
Spencerville, OH 45887, USA

Very easy to install

September 26, 2013
Installed on a 1969 Dodge Charger with a 440 cid with a MSD Electronic distributer and a blaster coil, New msd ignition wires...Took a total of 4 hours to install because of having to custom make the wires but other than that fairly simple and worked awesome when complety finished!!
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

4 questions : 4 answers

1 answers

msd 6425 6al I would like to use the 624al with the hei dist pn#91012342 assy, and I see the kit 91012346, what I am really looking for is the wiring harness that I see in that kit, or can I substitute

davecoenterprise1
sav, ga
June 08, 2014

msd 6425 6al I would like to use the 624al with the hei dist pn#91012342 assy, and I see the kit 91012346, what I am really looking for is the wiring harness that I see in that kit, or can I substitute

Answers

June 09, 2014
EricM
The wiring needed comes with this ignition box. MSD harness part number is 5478861 if you want to order an extra HEI harness to connect an MSD box.
1 answers

Is this sparkbox Northern Sportmod Legal? Run a claimer engine on my sportmod just curious if this is a legal item.

ZachR
June 19, 2013

Is this sparkbox Northern Sportmod Legal? Run a claimer engine on my sportmod just curious if this is a legal item.

Answers

June 19, 2013
Jason
Claim engine MAY use MSD #8728 rev-control with any rpm chip. No unapproved or additional ignition accessories allowed. All components must be out of reach of driver, but with rev-control easily accessible facing up or out for inspection. 12 volt ignition system and OEM HEI distributor only. The 6AL box is not legal for Northern Sportmod
1 answers

I am currently running the MSD distributed , Blaster coil , and the 6A box , I would like to upgrade to the 6AL box to have the rev limiter, will this all plug in or will I have to change the current wiring ???

John
Mokena Illinois
December 04, 2015

I am currently running the MSD distributed , Blaster coil , and the 6A box , I would like to upgrade to the 6AL box to have the rev limiter, will this all plug in or will I have to change the current wiring ???

Answers

December 07, 2015
Eric
Expert
If you currently have a digital 6A box MSD part number 6201 then this 6AL box will plug right in. The earlier 6A and 6AL analog boxes have different wiring connections.
1 answers

Is this product imca stock car legal?

C&C racing
Topeka ks
April 25, 2016

Is this product imca stock car legal?

Answers

April 26, 2016
Eric
Expert
Yes this ignition box is legal for use in the IMCA Stock Car class.
Page 1 of 1

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