C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Rear fuel line size

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Old Sep 23, 2010 | 05:55 PM
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Default Rear fuel line size

Does anyone know the size for the two lines running under the rear passenger side frame the come from the tank. The previous owner did a crap job and I want to make sure he used the proper diameter of line.
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Old Sep 23, 2010 | 10:44 PM
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Should be a 5/16" return line and a 3/8" feed line
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Old Sep 24, 2010 | 06:36 PM
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OK got them thanks. Now this guy has put rubber hoses above the passenger side muffler that I am nervous about. Anyone ever seen this done on one of these cars? The other is tucked up farther

Last edited by Steve_Sanders; Sep 29, 2013 at 12:29 AM.
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Old Sep 24, 2010 | 07:02 PM
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If you're not going to replace the entire line, then go get some compression fittings and new steel line to tie into the existing steel line.

Rubber lines near a muffler are a disaster waiting to happen.

One leak and you can probably kiss your car goodbye.
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Old Sep 24, 2010 | 10:57 PM
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Maybe not all of us would do it that way but it looks ok. It appears he used fuel injection hose clamps so as long as that is fuel injection hose I wouldn't be to concerned about it
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