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Old 06-30-2014, 07:49 AM   #1
Hivolt5.0
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Default Distributor gear

I have a question concerning the distributor gear for a 302. I'm putting a 302/AOD from an '89 Grand Marquis into a '48 F4. The engine was obviously originally fuel injected but I plan on running a carb. I assume I'll also need to change the ignition system since the fuel injected motor would have utilized a TFI module on the distributor. I would think converting it to a duraspark ignition would be appropriate. However, looking at the lifters it is a roller cam and from my Fox body Mustang days, I seem to remember that a cast iron distributor gear can NOT be used on a roller cam. Is this true?
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Old 06-30-2014, 05:08 PM   #2
darrell
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Default Re: Distributor gear

I put a 302 from an 86 crown in my 81 and changedthe dist, without a problem.it was an efi engine and a roller block but I was told it didn't have a roller cam.
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Old 06-30-2014, 11:26 PM   #3
craig
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Default Re: Distributor gear

If it has oem roller lifters, with an oem steel cam, then it came with a steel dist. gear. That is what I always believed until I bought a custom ground roller cam for a 302 from Comp Cams.
The cam they sent was cast iron, not steel. I got on the phone and they assured me that even though it was not steel, the stock roller lifters and steel dist. gear would be fine. I said B.S., they said it would work, that was 30,000 miles ago and it works great and there is no wear on the steel dist. gear.
Just the same, on the '89 Merc motor, I would use the steel dist. gear
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Old 07-01-2014, 03:19 AM   #4
JeffB2
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Default Re: Distributor gear

Or you could just go this route:http://www.ebay.com/itm/FORD-289-302...6e2ce3&vxp=mtr No external wiring or control box just one 12 volt source and has the steel gear,Note this is the long shaft distributor for EFI roller motors.It has the correct steel gear,you can use a steel gear with a cast cam but not the other way around. I love "plug and play"
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Old 07-01-2014, 07:28 AM   #5
Hivolt5.0
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Default Re: Distributor gear

Thanks guys for the input. Sounds like I just need to make sure I have steel gear on the distributor and I should be good.
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Old 07-02-2014, 01:39 AM   #6
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Default Re: Distributor gear

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Quote:
Originally Posted by Hivolt5.0 View Post
Thanks guys for the input. Sounds like I just need to make sure I have steel gear on the distributor and I should be good.
And the correct length shaft if you do a swap as shown in the link I posted.
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Old 07-03-2014, 10:29 AM   #7
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Default Re: Distributor gear

oh excellent! Thanks Jeff!
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Old 07-07-2014, 04:30 AM   #8
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Default Re: Distributor gear

Good post.
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