upgrade to 6.7 starter

powerlifter405

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First and foremost we need a sticky of simple ford or easy/low buck mods. Easier to search a single thread and we all can go to the same place vs searching hundreds of threads.... My rant.

I read about the 6.4 and 6.7 starter and opted for the 6.7 as I was reading it was cheaper but more importantly a better starter.

I have owned 2 - 7.3's a 6.4 and now a 6.0. The 6.4 has AWESOME starting capability in the dead of winter, minus -30 and no block heater and it cranks right up. My 6.0, not so much. It will but chugs horribly. I don't always have access to an electrical outlet. The 7.3 wouldn't start after being unplugged for 2 weeks in the dead of -30 MN winters. Plugged in for a day plus a battery charger plus the bronco jumping the batteries w/ even more juice was what it took.

Anyway..
The 6.0 starter has probably 200k+ miles on it. Sometimes the starter was sluggish so I opted for the 6.7 upgrade. I found a salvage 2018 w/ 40k online for $62 shipped. It looked nearly brand new when it arrived so yeah for me.

There is one, the lower bolt that needs to be changed. Use a 8mm-1.25x45 I used Fastenal # 1138620, .54 cents.
I also got a hi-alloy grade 8 split washer and grade 8 washer due to the sleeve. The 8mm barely has any of the bolt head making contact w/ the bellhousing thus the need for the washer. Also 2 of the 3 bolts were loose when I pulled the old housing so I wanted piece of mind w/ the split washer. I did use blue loc-tite on the new bolts just in case.

I did have to get a sleeve from Ace hardware, a steel spacer 5/16 ID - .469 OD x 1inch.
The rest is self explanatory for install.

Results, awesome. It has a similar sound to the crank of the 6.4. The speed is noticeably faster and even the wife noticed it. A well while cheap and easy upgrade. Some may say don't bother but in a cold climate the faster the motor is turning, IMHO opinion the faster the oil pressure and HPOP pressure is up to par and that results in faster start times=less battery drain. So far so good here.

I hope this helps someone.
 

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powerlifter405

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I'm glad you guys liked it and I hope it helps someone.

It was definitely one of the best low buck upgrades I did on the truck.
 

KCTurbos

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Curious if anyone has tested the 6.4 vs the 6.7 starter and if one is actually better?
 

powerlifter405

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Curious if anyone has tested the 6.4 vs the 6.7 starter and if one is actually better?

I know that Toomanytoys on the org has done some testing between and according to the verbiage on this post it may have happened from an amperage usage perspective, post 34 https://www.powerstroke.org/forum/g...putting-6-7-starter-6-0-a-4.html#post16347129

I posted this: I did measure my batteries today and at 42* they were resting at 12.7v, truck hadn't been driven in a week. I started up after the GP light went off and saw a low of 10.9v for almost 1.5 sec before the truck turned over. They rebounded to 12.4v for almost 24 secs before the alternator kicked on, then it jumped to 13.6v on the CTS2 and 14v on the volt meter.

I recall reading in a few different threads of someone using both and the 6.7 did actually turn the motor over about 100rpms more than the 6.4.

This weekend it was 34* and unplugged, no battery charger, the truck fired at approximately 1.4sec per my phone timer. It turns over significantly faster. I just happened to find a 2018 very low miles and cheap so that combined w/ some others thinking the 6.7 was a bit better was my reason for the 6.7 vs 6.4.
 

Cutting-Edge Diesel

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Curious if anyone has tested the 6.4 vs the 6.7 starter and if one is actually better?

I have installed both and 6.7 does crank it faster. It was a cheap fix for a old wore out truck that wouldnt build enough oil pressure with 6.0 or 6.4 starter. Put a 6.7 start in it and it fired up.
 

powerlifter405

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I have installed both and 6.7 does crank it faster. It was a cheap fix for a old wore out truck that wouldnt build enough oil pressure with 6.0 or 6.4 starter. Put a 6.7 start in it and it fired up.

W/ 311k on the clock I figured that :whs: was one of many potential culprits. It doesn't smoke any but w/ 311k miles I figure all the stock parts may have a little wear, or at least the LPOP and HPOP.

The 6.7 starter was a huge improvement in starting ability in my situation as well.
 
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