LT-1 Tank to Pump Fuel Pipe

[Alan S.]

Is there a fuel feed pipe specifically for the LT-1 option or is the same fuel feed pipe used as for the base 350/270?
The AIM indicates on UPC LT1, Sheet A2, Item 8B, FUEL LINES, "Assemble same as production. See Parts List or Bill of Material for part numbers".
Was there a special fuel line on that Bill of Material?
Thanks very much!!
Regards,
Alan

[Doug F.]

Re: LT-1 Tank to Pump Fuel Pipe

Lt-1's used single fuel line from tank to pump, and a single vapor return line from vapor canister to tank, (on passenger side ).

[Joe L.]

Re: LT-1 Tank to Pump Fuel Pipe

Is there a fuel feed pipe specifically for the LT-1 option or is the same fuel feed pipe used as for the base 350/270?
The AIM indicates on UPC LT1, Sheet A2, Item 8B, FUEL LINES, "Assemble same as production. See Parts List or Bill of Material for part numbers".
Was there a special fuel line on that Bill of Material?
Thanks very much!!
Regards,
Alan

Alan-----


Well, not many have been able to come up with the "Bill of Materials" referenced in the AIM. However, these things apply:

When the AIM for a particular option lists a particular part or system on the first page of the RPO, that usually means that the RPO uses something different than the standard parts shown in the regular pages of the AIM. Furthermore, when it states "assembles same as production", that's usually further evidence that a different part is used for the RPO.

[Terry M.]

Re: LT-1 Tank to Pump Fuel Pipe

I think the LT1 fuel line was 3/8-inch, and the base engine was 5/16-inch.

[Alan S.]

Re: LT-1 Tank to Pump Fuel Pipe

This question is the result of a discussion at the Florida Regional that I was not part of but someone told me about.
The discussion was whether the length of the pipe and bend at the carb end was different from the pipe for the base engine and whether the difference was enough to be noticeable to the somewhat informed viewer.
I've always just looked to see if the return pipe was there or not, not the configuration of the pipe that was there.
Regards,
Alan

[Joe L.]

Re: LT-1 Tank to Pump Fuel Pipe

I think the LT1 fuel line was 3/8-inch, and the base engine was 5/16-inch.

Terry-----


I don't think that OD was the difference. As far as I know, all 68+ frame fuel supply lines were 3/8", regardless of engine. I suspect that any difference involves a slight change in configuration of the forward end of the line in order to accommodate, to the extent that some designer thought was necessary, the difference in fuel pumps between the various engines.

[Doug F.]

Re: LT-1 Tank to Pump Fuel Pipe

Vapor return on driver's side. SAT

[Harmon C.]

Re: LT-1 Tank to Pump Fuel Pipe

Most of the pictures I have been sent show their is little difference if any in the LT-1 line and the standard tank to pump line. Both are 3/8 and the bends at the pump are very close to the same.The big difference is LT-1's have no return line on the passenger side.
I would like to see more pictures of LT-1 lines at the pump that show the difference. Original LT-1's please post line at pump pictures.

[Kenneth H.]

Re: LT-1 Tank to Pump Fuel Pipe

Lt-1's used single fuel line from tank to pump, and a single vapor return line from vapor canister to tank, (on passenger side ).

Doug,

There is no vapor return line on '70 LT1's. Just the fuel line on the passenger's side. I'm not sure about other year LT1s.

[Terry M.]

Re: LT-1 Tank to Pump Fuel Pipe

1970 with NA9, and all 1971 & 1972, had the vapor return line on the driver's side.

[Keith L.]

Re: LT-1 Tank to Pump Fuel Pipe

This is a Jan built 70.

[Harmon C.]

Re: LT-1 Tank to Pump Fuel Pipe

Kieth
That picture is the same as one other that I have and I see why the vendors only sell one line for all. I will see if the standard line can be installed to look like your picture.