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I'm putting a 96 Mark VIII 4.6 DOHC in my 56 Panel. The original Mark VIII fuel pump was in tank. What have those of you that have made the 4.6 conversion done for your fuel pump?
I have a 1999 Cobra 4.6L in my 1951 F1. It originally came with a returnless fuel system so the PCM would vary the pump pulse width. I converted it to a return style system.
I have a 1969 Mustang tank
-8 (1/2" which is overkill) supply and return lines (stainless)
-8AN fittings on everything
-Aeromotive adjustable fuel pressure regulator
-Walboro 255 LPH inline pump
-Aeromotive red anodized fuel rails
The key is mapping out your system in advance. Every fittings, nut, bolt, washer, size of line, length etc. Are you planning on keeping the stock Mark VIII fuel rails? I think they are the compression type with the center clip that requires a collar too to release the spring. If so, they make AN adapters to convert them as opposed to trying to find a line that matches the truck.
I have a cobra intake and rails and a COP conversion kit but was planning on getting the Mark VIII stuff running before I messed with the conversion. The AN adapters may be the way to go. Or like you just change out the rails.
Here is a pic of the tank in my 40 that I have been working on. I started with an in-tank pump thinking that sometime down the road I would want to change to an EFI. It got a bit difficult coming up with a regulator that would work so I went back to an external pump. The takeaway here is the fuel pickup unit pictured...it is from Bob Drake ($50) and it will support an in-tank fuel pump with/without return line or a carb setup.
I used the same engine you are using BJ. Took a fuel tank from an Isuzu rodeo that has the return style fuel pump in the tank. Swapped out the Isuzu pump for an after market 255 lph pump. The tank fit nicely between the rails and has a built in sump and had a skid pan with it. I did notch the frame slightly and the fill line is in the fender not the bed. I have not modified the engine, this system works great!
Whoa those pictures are huge sorry about that.
Last edited by theodore/teddy; Oct 4, 2015 at 08:36 PM.
Reason: huge pictures
Here is a pic of the tank in my 40 that I have been working on. I started with an in-tank pump thinking that sometime down the road I would want to change to an EFI. It got a bit difficult coming up with a regulator that would work so I went back to an external pump. The takeaway here is the fuel pickup unit pictured...it is from Bob Drake ($50) and it will support an in-tank fuel pump with/without return line or a carb setup.
Does the Bob Drake fuel pickup fit the standard tank? Did you use the stock fuel sender?
I have a 1999 Cobra 4.6L in my 1951 F1. It originally came with a returnless fuel system so the PCM would vary the pump pulse width. I converted it to a return style system.
I have a 1969 Mustang tank
-8 (1/2" which is overkill) supply and return lines (stainless)
-8AN fittings on everything
-Aeromotive adjustable fuel pressure regulator
-Walboro 255 LPH inline pump
-Aeromotive red anodized fuel rails
The key is mapping out your system in advance. Every fittings, nut, bolt, washer, size of line, length etc. Are you planning on keeping the stock Mark VIII fuel rails? I think they are the compression type with the center clip that requires a collar too to release the spring. If so, they make AN adapters to convert them as opposed to trying to find a line that matches the truck.
Thanks for the list of parts! I am really hoping to get a tank that exits the side for my 56 Panel.
Does the Bob Drake fuel pickup fit the standard tank? Did you use the stock fuel sender?
This pickup should work with any tank that has the 6 bolt attachment...I would imagine that an enterprising auto guy could even fabricate an adapter if necessary. A universal sender will adjust to virtually any tank...the biggest concern is matching the resistance range to your gauge.
I use 1994 chevy van fuel injection tanks in both my F1 builds, lots of pics and details in the build threads. I have a walbro 255 pump in truck #2 and a stock LT1 pump in truck #1.
Gotta hit the salvage yard and have a look at this tank!!!
What'd you do about a sending unit?
In my third picture you can see where i added the sending unit from my original tank. I just cut the flange out of the old tank and soldered it in to the best looking flat spot on the Isuzu tank. Had to clock it to miss the pump sump. Had to shorten the arm on my old float. Works great with my original gauge. You could probably use the Isuzu sending unit with modern gauges.
bjmayberry2 I used the G20 van tank that Dave used. Its got a sump for the efi pump and it was around 80 bucks shipped to my door. I'll be running a walbro 255 with my 4.6.
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