EFI Intake
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Junior User
Joined: Jul 2002
Posts: 63
Likes: 0
From: Suffolk
EFI Intake
I'm guessing the efi 460 intake won't fit the older style carbed heads, am i right? If there is any chance, i'd like to use it and not have to fab ub an intake, athough i could. Do newer head fit older motors? Is it just a whole different animal from the carbed engine? I have a 78 that i'm injecting at somepoint, just haven't nailed down exactly what intake i'm going to use yet. thanks!
Elder User
Joined: Jan 2000
Posts: 966
Likes: 2
From: Crooked River Ranch, OR
EFI Intake
You need to run the EFI heads with the EFI intake. If your looking for better mileage run the EFI setup, if your looking for the possibility of major HP increases run the older carbed versions.
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Junior User
Joined: Jul 2002
Posts: 63
Likes: 0
From: Suffolk
EFI Intake
I have the carbed engine in my truck now. I'm going to make it EFI one way or another soon, but not with stock components. I'll be runing somewhere around 36 lb injectors and an aftermarket fuel computer that is fully programmable. I was just looking for a quick and dirty way to get the injectors in the intake, ei a stock efi intake. I guess i'll just go ahead with my plan and start fabbing up a custon intake, billet aluminum and sheet metal..... Any one know the specs on the boltholes and such for the intake? I'll probably CMM an old intake, but if there were drawings around, i'd love to get a hold of them. thanks!
Senior User
Joined: Jun 2002
Posts: 263
Likes: 1
From: British Columbia
EFI Intake
There is an aftermarket intake called a spyder 460 intake. It is machined for injectors, and has a throttle body set up on it. You will have problems drilling injector holes in a non efi intake due to the thin casting. By the way not only are the bolt holes different on an efi intake, the port geometry is also.
Nick from the frozen north
1974 F-250 4X4
soon to be 429
dana 60 front and rear
Nick from the frozen north
1974 F-250 4X4
soon to be 429
dana 60 front and rear
Junior User
Joined: May 2002
Posts: 56
Likes: 0
EFI Intake
Jared,
I'm halfway through doing this same thing, and had the same problems with the intake. The EFI intake has round ports that are higher than the oval ports in the head. I took material off the top of the ports in the head to match the intake. There is plenty of material to do this. The problem is the bottom of the port in the head goes below the intake. Even though the Napa gasket will cover the hole this is probably a vacum leak waiting to happen. I used Devcon aluminum putty to build up the bottom of the EFI intake to cover these holes. If it stays on there I'll probably be OK, if it falls off I'll probably have to make an intake like your describing. The bolt holes do line up, I have the intake on the engine and bolted down right now.
I'm going to use the Mustang computer and a Tweecer to change firing order, displacement, turn off EGR etc. This way I'll have all the good stuff Mass-Air, seqential injection etc that the stock 460 doesn't have.
I looked at that Spyder 460 intake too, but it is real expensive, I figured I could do alot of experimenting on my own and still come out ahead.
I'm halfway through doing this same thing, and had the same problems with the intake. The EFI intake has round ports that are higher than the oval ports in the head. I took material off the top of the ports in the head to match the intake. There is plenty of material to do this. The problem is the bottom of the port in the head goes below the intake. Even though the Napa gasket will cover the hole this is probably a vacum leak waiting to happen. I used Devcon aluminum putty to build up the bottom of the EFI intake to cover these holes. If it stays on there I'll probably be OK, if it falls off I'll probably have to make an intake like your describing. The bolt holes do line up, I have the intake on the engine and bolted down right now.
I'm going to use the Mustang computer and a Tweecer to change firing order, displacement, turn off EGR etc. This way I'll have all the good stuff Mass-Air, seqential injection etc that the stock 460 doesn't have.
I looked at that Spyder 460 intake too, but it is real expensive, I figured I could do alot of experimenting on my own and still come out ahead.
Elder User
Joined: Feb 2001
Posts: 502
Likes: 0
From: atl
EFI Intake
check into probe...they have a efi spyder intake the uses a mustang throttle body on it. edelbrock victor jr lower intake drilled for injectors....look pretty cool. www.probeindustries.com
thought this might help
mike
thought this might help
mike
Senior User
Joined: Sep 2002
Posts: 434
Likes: 2
From: Oregon: Land of the Majes
EFI Intake
hey, another thought for a fuel injection control system.......
[http://www.electromotive-inc.com/]
I have seen a couple of those setups that have been used, and did not have to run a mass air setup(if I remember correctly, there is also a twin turbo 460 powered ford fairmont website,
[http://www.boosttechmotorsports.com/projects/fairmont/fairmont.htm] that is running the electromotive setup, twint turbos, and the stock EFI intake), which is not bad, one less cork in the air system, and easy tuneability.....
[http://www.electromotive-inc.com/]
I have seen a couple of those setups that have been used, and did not have to run a mass air setup(if I remember correctly, there is also a twin turbo 460 powered ford fairmont website,
[http://www.boosttechmotorsports.com/projects/fairmont/fairmont.htm] that is running the electromotive setup, twint turbos, and the stock EFI intake), which is not bad, one less cork in the air system, and easy tuneability.....
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Senior User
Joined: Jul 2001
Posts: 103
Likes: 0
EFI Intake
I have also modified the stock EFI intake for use with D0VE heads. I had no trouble removing material from the roofs of the head intakes to match the intake. There is plenty of 'meat' there.
The trick for matching up the bottoms is to take the intake to a shop that can build up the bottom of the intake runners with weld to provide a gasket sealing surface. If you look carefully at the bottom at the runners you'll notice they neck down as they get close to the heads. I had the welder 'fill in' the neck areas and then used a carbide tip die grinder to port match the heads and back into each runner about 1.5 to 2 inches.
I did have to buy FelPro intake gasket blank material to make my own intake gaskets. The welding cost me $50, the resurfacing of the intake cost me another $60.
John
The trick for matching up the bottoms is to take the intake to a shop that can build up the bottom of the intake runners with weld to provide a gasket sealing surface. If you look carefully at the bottom at the runners you'll notice they neck down as they get close to the heads. I had the welder 'fill in' the neck areas and then used a carbide tip die grinder to port match the heads and back into each runner about 1.5 to 2 inches.
I did have to buy FelPro intake gasket blank material to make my own intake gaskets. The welding cost me $50, the resurfacing of the intake cost me another $60.
John
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