Long time no post... Fuel tank ??s

[rfpowerdude]

Hi all, I am a member here since I am using a GN tank to feed an EFI'ed BBO 455 in my Olds Cutlass. My question is if anyone knows of an aftermarket source for GN tanks that have the correct plastic baffle. I really need a new tank. The one I have in the Cultass had sat open for quite some time before I installed it and I have had nothing but trouble with in tank rust. I did flush and flush and flush originally and dry it out the best I could before using it.

I want to replace that tank with a new one. Suggestions?
TIA,

 

[Shawn N]

The Spectra tank is an excellent replacement. The in tank baffles are steel.

 

[rfpowerdude]

I guess I could just make sure I keep a reasonable amount of fuel in it. Or not do holeshots with very little fuel in the tank...

What is the Spectra part# that is for the EFI application? I can never tell if it's the right one on sites like rockauto...

 

[earlbrown]

Part number GM307C with the neck or GM307 without it.


personally I wish I would have went through the extra trouble to build my own neck. That way I can fill up my car without drowning my fillers with gasoline.

 

[rfpowerdude]

I see a GM307A or GM307C (rockauto), both with filler necks. Since I have a Cutlass, I need to buy one without the neck and buy a Cutlass neck.

Rockauto lists the GM3C as the filler neck-less one. There is no listing for a GM307 without the neck on rockauto. Maybe I should look elsewhere for the GM307?...

 

[mikestertwo]

I see a GM307A or GM307C (rockauto), both with filler necks. Since I have a Cutlass, I need to buy one without the neck and buy a Cutlass neck
Rockauto lists the GM3C as the filler neck-less one. There is no listing for a GM307 without the neck on rockauto. Maybe I should look elsewhere for the GM307?...

I'm running the GN fuel tank in my 84' Hurst Olds and don't have any issues with the filler neck. It sits a little higher but it's a non issue. The license plate door closes with no problems.

 

[earlbrown]

The neck should be the same on your Cutlass. The tag is in the same place.

The downside is you can't run more than 1 oz of fuel per hour without it burping out a gallon every 3 seconds.

 

[rfpowerdude]

Thanks for all the replies! The filler necks are different and the locations are a little different. When I originally installed the GN tank in there, the filler neck inlet hit the top of the opening. I cut it off and cut off my Cutlass neck from the old tank and welded the Cutlass neck on. This is when I flushed flushed flushed it to make sure it was safe to weld. I wanted to buy a new tank and a Cutlass neck and do it right the first time...

 

[earlbrown]

GM307 is the one you want then.

 

[Chuck Leeper]

Don't think the 307 has the bowl and baffles for efi, in tank.

 

[rfpowerdude]

I guess I'll have to get the 307C and a Cutlass neck and do what I did before. Cut off and reweld. I have no problem doing that, I was just looking for a cleaner solution.

 

[rfpowerdude]

Bought the 307C. Looked at the baffles and yes, it is nothing like the plastic one in my GN tank.

Also, I cannot see how gas gets into the rectangular tub that is the baffle. It looks like it's isolated from the rest of the tank.