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Old May 24, 2009 | 07:48 AM
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grandpa'sprideandjoy
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lead additive

Hi everyone I am restoring my grandpa's 78F250 with the 400 in it what would be the best lead additive to use in it any help is appreciated
 
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Old May 24, 2009 | 07:55 AM
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Wink

If you are rebuilding the engine and will use the truck regularly I'd recommend having hardened valve seats installed.
If you are not rebuilding the engine and will use the truck regularly I'd recommend adding an approprate lead substitute at each fillup.
If you are not going to rebuild the engine and will not be using the truck on a regular basis then its really not that nessessary to add the substitute.
 
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Old May 24, 2009 | 08:13 AM
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it still is going strong even with 317,500 miles on the clock so I am just goin to clean it up and put new gaskets in to keep the oil inside where it belongs
 
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Old May 24, 2009 | 09:43 AM
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You don't need a lead additive in a 78, because it would have had hardened valve seats by then.
 
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Old May 24, 2009 | 12:19 PM
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Originally Posted by fmc400
You don't need a lead additive in a 78, because it would have had hardened valve seats by then.
This is correct, I ask the same question for my 77, which does not need any additives in the gas either.
 
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Old May 24, 2009 | 01:05 PM
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What about my '76? (No Catalytic Converter)
I figure I could run either in him.
Would it make a difference in power/performance?
 
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Old May 24, 2009 | 01:31 PM
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I wouldn't go anywhere near lead additives, regardless of how your motor is equipped. In the unlikely event it will prematurely burn your valves/seats given the limited amount of miles youre probably going to be putting on this truck, LET EM BURN!

It ain't worth dealing with that HIGHLY toxic substance.
 
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Old May 24, 2009 | 05:07 PM
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thanks guys I know my 79 dodge w200 I had ran on leaded fuel according to the owner,s manual so I was just wondering about Ford engines this is my first ford and I don't know much about them except that this one has been tough I run dodges and I have no use for a chevy
 
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Old May 24, 2009 | 07:13 PM
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i know i know, but this video my friend made has the info you need, his user name on Youtube is 1972fordf100, he is also a user on here under the same name, he made this video about the zinc additive he uses for his oil, just click the link and watch, i am planning on getting some for my oil, as modern oils are not using the zinc additives, so unless your truck is 2000s and up then you don't need this stuff, but older motors will, also i would suggest lead additives for all 73-79 ford trucks, i know most people who own even late 70s fords don't run cats, so there is no worry of damaging the cat, also you never know if a older motor was installed in the truck, but if its a 400 i understand they don't go back as far as a 360-390 or 302w but i would still add lead to the fuel, its a better plan if you don't want to do major work on the motor,

here is the zinc additive video below, i suggest all 90s and older cars and trucks use it or a product like it, old school machines needs are not a factor anymore to modern companies, so we have to do the best we can with what we have,

YouTube - My 1 Year Anniversary Video

hope this info helps dent side owners, and any other machine you own

also my you tube user name is BrentHenry1989, so that's me he is referring too,

-Brent
 
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Old May 24, 2009 | 10:25 PM
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ALL 1973/79 trucks can run today's unleaded fuel. Don't break a sweat.
 
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Old May 24, 2009 | 11:27 PM
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Originally Posted by Jermafenser
ALL 1973/79 trucks can run today's unleaded fuel. Don't break a sweat.

....Truth....
 
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Old May 25, 2009 | 07:40 AM
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thank guys I appreciate the help
 
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