Fuel tank difference?!

[IronFreak]

Is there a difference between an 87 early model and an 88 late model fuel tank?

[Quadrajet]

Look it up on realoem, they will have part numbers, but sometimes not accurate pics or diagrams. I know that between the "I" and the "e" tank the "I" has a divorced or separate fuel level sending unit, it will be on the driver's side of the tank.

[IronFreak]

I more or less want to know if and "E" tank will fit into an "I" chassis.

[Quadrajet]

I have folks looking for tanks every now and again. I've had e tanks, they seem to want an i tank solely to avoid hassling with adapting the fuel tank sender. Since I haven't seen both tanks side by side, I can't say for sure. But it wouldn't make much sense to build them too radically different.

Sorry I can't be of more help. When I get an i tank I'm gonna snap some pics, for my own knowledge.

[IronFreak]

My back story....

Building a track car, was going to do a rear mounted fuel cell so I sold my tank setup.....

After more research and polar momentum shifts blah blah blah I decided I was to stick with the stock tank. I'm thinking that it would just be simpler to stick with an I tank since that what was originally in there.

[Herr Faust Schinken]

late model tanks are a couple of gallons larger i think early model tanks are 55l and late model tanks are 63

[ZM Blue Devil]

yes there is a difference

[Northern]

late model tanks are a couple of gallons larger i think early model tanks are 55l and late model tanks are 63

^ this.

Also I think only the late tanks have dual level sensors.

[jlevie]

From 9/87 on all 325 cars will have the 63L tank. Earlier cars all have the 55L tank. The differences in the two variants are the capacity, the presence of the left hand sensor port in the 63L tank, and the substitution of an internal siphon for the crossover tube in the the 63L tank. Either tank will mount and can be made to work. But if you have a car that originally had the 55L tank (no hole in the body above the tank on the left side) the early 55L tank will be the easiest to use. Along with the dual pump set up. However on a track car I'd use the 63L tank and fit it with an early transfer pump on the left side that feeds a late model 318is high pressure pump on the right side to eliminate fuel starvation problems in right hand corners, regardless of what tank the car originally came with.

[GrandRoyaL]

what is the part number of this pump ? does it have a similar option besides buying at the dealer ?
do you eliminate the sensor on one side to put this transfer pump ?

[vpilarrt]

Hey Jim, what's the advantage of the late 318is pump? Higher flow?

[jlevie]

The late 318is pump has the fitting for the return line that allows fuel from a left side transfer pump to be dumped into the right side of the tank.