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I have a 1975 Triumph TR6 with a 2.5L inline 6cyl engine. It is an odd fire engine (1,5,3,6,2,4). I am running a Mallory dual point distributor and an MSD high voltage e-coil. I purchased a new MSD ignition box 6AL 6420 and was ready to install it. After reading the installation instructions it states that it is only for an even fire 6 cyl engine. Before I purchased this ignition box I researched the product and was assured that this was the correct one (6AL). Can you please verify that this is the correct ignition box before I cut the little blue wire to adapt it to a 6cyl.
07-19-2007, 11:10 AM
The 6AL will program for 6 cylinder, the only problem is that it is for even fire only. Unfortunately, we no longer off any ignition that is set up for the 'odd-fire ' application as a seperate part.
You can purchase that unit, call and get an RMA number, and send that into us for conversion to 'odd-fire' application. That conversion is about $40.00 not including the shipping charges.
Would an MSD 6A 6246 ignition box work?
I contacted the MSD Tech Line and was told that they do not do the conversion any longer and suggested purchasing a digital 6+ instead. Kinda pricy.
07-19-2007, 03:43 PM
We do conversions on most boxes still. We can convert the 6AL. I do not believe that is a true odd fire. Look at where the points ride and look at the spacing between them. From the tip of each lobe are they even or oddly spaced?
Thanks for the info. I am currently running a Mallory dual point distributor. Does this same test apply?
07-20-2007, 08:11 AM
A Mallory dual point distributor will be 'even fire'. Still look at the spacing on the lobes as described in our previous post.
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