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Old June 5th, 2012, 06:08 PM   #1
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Default 351W EFI to Carb Intake ?'s

I am throwing a Edelbrock 351W Performer intake on my 351w. It originally was in a 1991 F250 so it was fuel injected and what not. When I swap this intake on should I get intake gaskets from a 91 or a different year so that it mates up correctly?
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Old June 5th, 2012, 06:22 PM   #2
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I am throwing a Edelbrock 351W Performer intake on my 351w. It originally was in a 1991 F250 so it was fuel injected and what not. When I swap this intake on should I get intake gaskets from a 91 or a different year so that it mates up correctly?
IIRC you may want to get some for a 1985-86/ the last year of carbed 5.8L.
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Old June 8th, 2012, 12:34 AM   #3
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Just get the gaskets for the year of your heads. Also....make sure you use the correct distributor gear for the cam your motor has when swapping.
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Old June 8th, 2012, 06:57 AM   #4
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Want to ship all the efi stuff to me?
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Old June 8th, 2012, 04:15 PM   #5
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correct distributor gear? I wasn't aware there were any differences...how would i tell which I need? I have a 91 351w right now, in summit and what not I dont see any options for different gears for distributor..
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Old June 8th, 2012, 10:17 PM   #6
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You cant use the efi distributor with a carb motor.You will need an older dist. that has vaccum advance or an afermarket unit. If your motor has a flat tappet cam its made of cast iron so the dist. needs to have a cast gear as well. If its a roller cam you need a steel dist. gear to match the steel camshaft.
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Old June 9th, 2012, 12:43 AM   #7
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I knew there was no way that I could use the EFI Dist, and would need the older vaccum style one. That is good to know though about the cam style and gear choices, I was thinking you meant they had different teeth counts or something. Any suggestion on what to get that is somewhat decent but not outrageous expensive?
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Old June 9th, 2012, 03:21 AM   #8
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Honestly a rebuilt parts store unit is just fine.
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Old June 9th, 2012, 10:56 PM   #9
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I went real simple and purchased an HEI unit from eBay. It was around $80, but has all the ignition built in and replacement parts are cheap since its Chevy inspired.
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Old June 10th, 2012, 04:08 PM   #10
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You cant use the efi distributor with a carb motor.You will need an older dist. that has vaccum advance or an afermarket unit. If your motor has a flat tappet cam its made of cast iron so the dist. needs to have a cast gear as well. If its a roller cam you need a steel dist. gear to match the steel camshaft.
false...
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Old June 10th, 2012, 11:22 PM   #11
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false...
.....and ?
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Old June 11th, 2012, 07:46 PM   #12
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Please tell me this is for a drag car...i do not get the "EFI is the devil!" mantra otherwise.


As stated, get the same gaskets as the year of your heads...
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Old June 12th, 2012, 04:20 PM   #13
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I didn't want to start the debate of why I am doing it over EFI other than the fact its simple...would efi work better for what I am doing? probably....I want everything to look nice and neat on the truggy I am building and you can see in both wheel wells clear as day...I don't know if you realize how much bullshit is on a 91 from all the emissions to all the vacuum crap but it doesn't exactly look nice and neat...and if I spend all the time swapping it in from the truck to the project truck I might as well give up now....I want the simplicity of the carb, and wanted to run a C6 trans and didn't really know what the computer would think as far as trying to run the engine without the E40D hooked up....down the road when my project is completed yes I may swap fuel injected stuff on but everything has to start somewhere and this is the easiest way to get this going right now and make it look clean.
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Old June 12th, 2012, 04:43 PM   #14
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I run a 96 351 with all the 'efi stuff' in my 74 Early bronco, mine had the e4od. I made it think its in nuetral and now run a c6. Take your time and it would look fine.
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Old June 12th, 2012, 05:52 PM   #15
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What about the inside harness though? I dont have anything stock besides part of a steering column...the dash is all custom stuff...it seemed like more of a headache than getting a aftermarket harness down the road.
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Old June 12th, 2012, 07:55 PM   #16
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I run the 96 fuse panel, a 80's steering column and ign switch. And all auto meter gauges.

Just sat down with the harness and a schematic book and and picked/pulled the wires that weren't needed and shortened the ones that were.

Before I ran this set-up in my 74, I had it installed in my 03 ranger truggy. I had even wired the 96 harness to use the 03 instrument cluster and all gauges and lights worked as oe. I also did a similar deal on a buddys 91 ranger truggy with a 89 5.8L efi harness and related.
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Old June 12th, 2012, 09:22 PM   #17
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Quote:
Originally Posted by jeepxj2007 View Post
I didn't want to start the debate of why I am doing it over EFI other than the fact its simple...would efi work better for what I am doing? probably....I want everything to look nice and neat on the truggy I am building and you can see in both wheel wells clear as day...I don't know if you realize how much bullshit is on a 91 from all the emissions to all the vacuum crap but it doesn't exactly look nice and neat...and if I spend all the time swapping it in from the truck to the project truck I might as well give up now....I want the simplicity of the carb, and wanted to run a C6 trans and didn't really know what the computer would think as far as trying to run the engine without the E40D hooked up....down the road when my project is completed yes I may swap fuel injected stuff on but everything has to start somewhere and this is the easiest way to get this going right now and make it look clean.
Understandable. If you don't know alot about EFI, that's fine...and if timing doesn't allow for research to learn, the swap away.

That said, as mentioned it can be done. If you're willing to learn/try, there's a ton of info out there and alot of ppl here that can help...albeit slower than you'd likely want. To do what needs to be done (clean routing), you need to know the basics about electronics...and be able to properly crimp/solder wires.


Regardless, use gaskets from the 91's heads if you swap manifolds. You can even get others that don't quite match (smaller) and open them up if you so desire...
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