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rusted return line

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Old Oct 13, 2006 | 04:51 PM
  #1  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
rusted return line

car is an 86z currently running 305 tpi
what size is the stock return line
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Old Oct 13, 2006 | 08:10 PM
  #2  
Damon's Avatar
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From: Philly, PA
5/16". Main feed line is slightly larger- 3/8".
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Old Oct 20, 2006 | 04:55 PM
  #3  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
thanx for the info now is that evap/tank vent line 3/16 (same as brake line)or ?

Last edited by redcamaro83; Oct 20, 2006 at 06:02 PM.
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Old Oct 21, 2006 | 11:12 AM
  #4  
redcamaro83's Avatar
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From: Chicago, IL
Car: 86 Z28
Engine: 305
Transmission: 700r4
Axle/Gears: TBD
ok officially here the sizes for any one replacing stock fuel lines from the tank rubber hoses forward, if its tpi you will probably have

Main fuel supply (largest line) 3/8in
Return line (second largest) 5/16
Tank vent- evap line 3/16
Rear brake line 3/16

these are the lines you should see under the car if you need to replace some

the brake line will be attached to a flexing typ of line at the front if u need to determine which is which.
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