How big is the fuel line on a Chevelle SS?

But it appears that many of the 4-bbl cars came with a 3/8″ fuel line (possibly with a 1/4″ return line), while 2-bbl cars tend to have a 5/16″ fuel line. It is unknown for certain if any 7/16″ fuel lines were used.

What kind of engine does a Chevelle have?

Production (non-SS) Chevelles have a single fuel line. The one exception is the optional L78 engine available with the SS option, it also only has one fuel line. Optional transmissions included both the M20 or M21 manual 4-speed transmission or the TH400 automatic.

Do you need a return line for a gas tank?

The two line tanks dont have the return line. You dont generally need to run a return line if youre running a mechanical pump. You do need one (highly recommmended?) if you have an electrical pump. You must vent your tank in some way or you will have fuel delivery problems.

Do you need a return style fuel pump?

Fuel pump options for AN line return style setups are the same as a return – less setup with the difference being that the fuel pressure regulator is built into the fuel rails themselves on the LS engine. You will need more hose on a return style setup as both the feed and the return line needs to return from the engine bay.

How is a new fuel tank attached to a Chevelle?

The new tank is secured by tightening up the strap bolts. The hard line coming off the tank (out of the sending unit) is connected back to the main fuel line. We also connected the ground wire leading off the sending unit to its original spot on the Chevelle’s undercarriage.

What kind of fuel line does a Chevelle have?

Both the L34 and L35 engines used a fuel return line so there will be two fuel lines along the frame rail. Production (non-SS) Chevelles have a single fuel line. The one exception is the optional L78 engine available with the SS option, it also only has one fuel line.

Why does the Chevelle fuel system use rubber?

This eliminates the chance of clogging fuel filters with rust and other debris that may be present in an old tank. Modern fuel is hard on rubber prod¬ucts, causing seepage and eventually failure. An original Chevelle system used rubber to connect the steel line at the front and rear of the car. Almost all braided-steel line has a rubber lining.