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#2367291 - 09/07/17 11:32 PM MSD Hemi 6 box on 6.4
8secDart Offline
pro stock

Registered: 12/28/04
Posts: 1251
Loc: Salisbury North Carolina
Hope someone can help. I have called everyone under the sun and no one can answer why the MSD Hemi 6 box will not work on the 6.4 in a carb form.

My guess is the tone ring is different from the early 08 down 5.7?? Can a early 5.7 tone ring be made to work on the 6.4??
Thanks guys

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#2367307 - 09/08/17 12:09 AM Re: MSD Hemi 6 box on 6.4 [Re: 8secDart]
sycboi Online   content
super stock

Registered: 09/18/03
Posts: 936
Loc: Norwalk, Ohio
You'd need to use the early 6.1 tone ring because of it's 4 bolt mounting. The 5.7 only uses a 3 bolt mounting configuration. I am running an '08 6.1 crankshaft in my 5.7 and it has the 32 tooth reluctor you're after to enable the box to work with it...
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SuperBeast

An enforcer for the Mopar Mafia!

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#2367391 - 09/08/17 09:43 AM Re: MSD Hemi 6 box on 6.4 [Re: 8secDart]
MattW Offline
top fuel

Registered: 06/02/05
Posts: 2464
Loc: Ontario Canada
Originally Posted By 8secDart
Hope someone can help. I have called everyone under the sun and no one can answer why the MSD Hemi 6 box will not work on the 6.4 in a carb form.

My guess is the tone ring is different from the early 08 down 5.7?? Can a early 5.7 tone ring be made to work on the 6.4??
Thanks guys


Simple solution is K1 part # TR 32 It's a 4 bolt design and a 32 tooth reluctor wheel. Molnar has them also.
I believe the MSD 6 will not recognize the 6.4 64 tooth count and will not work.
Matt


Edited by MattW (09/08/17 09:46 AM)

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#2367394 - 09/08/17 09:55 AM Re: MSD Hemi 6 box on 6.4 [Re: 8secDart]
Hemijoejr Offline
member

Registered: 06/20/15
Posts: 27
Loc: NJ, USA
The Hemi 6 will not work on a 6.4L due to the tone wheel. To use the Hemi 6 you would need to change the tone wheel to a 6.1L wheel or according to FAST their XIM can be used in a stand alone carb application and can be setup to use the 6.4L fine tooth wheel. You will still need to lock the phaser in the timing chain.
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Stock Displacement, pump gas, 5.7L Gen 3 Hemi, early 5.7L heads, 3670lbs with driver, Best time and MPH 11.11@120.9MPH

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