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Old 03-24-2013, 08:49 AM   #1
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Want opinions for 85 5.0

I have a carbureted 85' 5.0 and wanted opinions on if I should keep it carbureted or swap it out for a fuel injected motor?
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Old 03-24-2013, 09:16 AM   #2
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Opinion will vary but if you 85'(the whole car) is in great shape I personally would be inclined to stay somewhat original, maybe an upgraded carb/intake.. If the car is already in need of lots of work etc I may be inclined to to swap in a newer MAF engine
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Old 03-24-2013, 10:29 AM   #3
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The guy I bought the car from had already swapped it from the 4cyl turbo to the 5.0 carbureted so the car is no longer original. If I do swap out the motor I was thinking of possibly getting a bigger motor, maybe a 306 or a 427. Or would I get more bang for my buck just sticking with a 302 and use the money I save on performance parts?
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Old 03-24-2013, 10:31 AM   #4
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This is the shape it's in body wise

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Old 03-24-2013, 07:44 PM   #5
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Originally Posted by Limes3578 View Post
This is the shape it's in body wise
I'd out a 351w stroker, 363 or 393.. Or, if you have plenty of money you could get the right block and do a 351w stroked to a 427.
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Old 03-24-2013, 10:10 PM   #6
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Coyote swap all day!!!
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Old 03-24-2013, 11:10 PM   #7
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Quote:
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This is the shape it's in body wise
Clean! What budget before I start throwing out answers?
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Old 03-25-2013, 04:38 AM   #8
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Thanks for all the ideas. My current budget is about 3 grand but by the summer it could be about 5.
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Old 03-25-2013, 07:08 AM   #9
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Coyote swap all day!!!
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Old 03-25-2013, 08:19 AM   #10
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I have a nice intake for sale listed in tbe classifieds. Its freshy painted with ceramic engine enamel and is great intake. Pm if interested. ..
Its this intake
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Old 03-26-2013, 11:07 AM   #11
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Thanks for the offer, but I already have an edelbrock high rise intake
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Old 03-27-2013, 11:55 AM   #12
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Fuel injection will give you the best power and drivabilty in any conditions, easier to tune as well .
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Old 03-27-2013, 01:23 PM   #13
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That's what I was thinking. I think my fuel pump crapped out on me, anyone have any suggestions on a fuel pump I should get?
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Old 03-27-2013, 01:56 PM   #14
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If you are carbed I would get a holley blue. It will have plenty of growing room.
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Old 03-30-2013, 09:55 PM   #15
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Thanks, I looked into it and I think it's what I'm going to get. What would be the easiest way to convert from mechanical fuel pump to electrical?
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Old 03-30-2013, 10:15 PM   #16
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Thanks, I looked into it and I think it's what I'm going to get. What would be the easiest way to convert from mechanical fuel pump to electrical?
Ok. I haven't done this swap. But I will run through it.

I believe you can just use a block off plate where the mechanical is located . It should be relatively easy to find but I would probably just make one and use some silicone to seal it. But if you haven't noticed I fab everything I can. Lol

https://www.google.com/search?q=83+m...iw=360&bih=567.

Then your gonna want the pump close to the tank. I would just splice into the rubber line. Your gonna want a filter before the pump to keep the pump from getting damaged. You can probably just get away with a stock filter.

Then most people will say is unnecessary but holley will say is a good idea to have a filter close to the engine. I would use a high flow since you already have a filter in back. That way your not restricting it to much.
http://www.summitracing.com/parts/rus-650103

Is your current setup return? I'm running my carb with no return. But this part im not exactly sure. I would just try to use your current lines first and you should be alright with a good reg.

But holley sells this pump as a kit with an adjustable pressure regulator. You should be able to dial her in good with this. It should also come with mounting brackets for the pump and reg. It will have better instructions than I just gave you. If you need any more help just holler.
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Old 04-20-2013, 10:39 AM   #17
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Does my car have 2 fuel filters?
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Old 04-21-2013, 01:02 PM   #18
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Maximize your cars power combination. If the car is manual keep the carborator setup. If the car is auto then convert to a stock EFI system and throw on a turbo kit.

For the money you are looking to spend I would stay carborated reguardless and build a naturaly aspirated setup. AFR 165cc heads have a 80% exhuast output making them good for use with a dual profile cam which is awsome for building maximum all motor or nitrous power. A stroker kit next would be ideal. A 347 will produce too much torque for your car on street tires to be effective so I recomend jumping to a light weight piston/rod 308-318 combo unless you plan to run drag radials or slicks then spring for the 342/347 combo. Dont forget to run 1 3/4 longtube header exhuast with the AFR heads. Also a X-pipe will bring you more power than a H.
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Old 04-21-2013, 01:26 PM   #19
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Keep it carbourated bc it's the last year and it will be worth more especially if it has the stock breather
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Old 04-21-2013, 02:24 PM   #20
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I'm somewhat of a purist, so I would say stay with the carb. That said, I'm biased cuz 85 coupe was my first. If u are planning on building a racecar I would go carb. The benefits of FI is ease of starting and efficiency in different weather and elevations. Carbs can be adjusted for this, but if u do lots of cross country trips can be a pain. Personally I like the look of a carb motor over FI. Less clutter. This is all personal preference. It's up to you if you like original look and performance, if you are looking to maximize power or if you are building a street able weekend warrior. Good luck.
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