suburban tow truck fuel issue

Alan Roehrich · 10-19-2011, 08:16 AM

The inner fender is the wrong place to route fuel lines. Chevrolet put them on top of the frame rail on cabureted trucks because air flows there.

The big block carbureted trucks had a 1/2 fuel line from the tank all the way to the fuel pump, it was necked down for a 3/8" hose. They also had a different pick up in the tank. I always used a genuine Delco fuel pump for a 70 Chevelle on my big block trucks, that seemed to be the most reliable and effective mechanical pump, the big Holley race style pumps would at times have pressure spikes that caused a Q-Jet to flood.

See if you can find the correct fuel tank and the correct sending unit and pick up for an earlier truck with a big block and a carburetor. You can probably even find the fuel lines.

10-19-2011, 08:16 AM	#13
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,144 Likes: 1,623 Liked 1,952 Times in 439 Posts	Re: suburban tow truck fuel issue The inner fender is the wrong place to route fuel lines. Chevrolet put them on top of the frame rail on cabureted trucks because air flows there. The big block carbureted trucks had a 1/2 fuel line from the tank all the way to the fuel pump, it was necked down for a 3/8" hose. They also had a different pick up in the tank. I always used a genuine Delco fuel pump for a 70 Chevelle on my big block trucks, that seemed to be the most reliable and effective mechanical pump, the big Holley race style pumps would at times have pressure spikes that caused a Q-Jet to flood. See if you can find the correct fuel tank and the correct sending unit and pick up for an earlier truck with a big block and a carburetor. You can probably even find the fuel lines. __________________ Alan Roehrich 212A G/S