Fuel System Questions

[BigBear440]

Starting to replace fuel system on my 68 Coronet RT and have a couple of questions. The engine in the car is a HP 440 out of a 69 - Shouldn't the fuel lines be 3/8"? Would it be worthwhile to make them 1/2 inch? Planning on replacing the tank, sending unit, straps, pad, filters etc. Based on your experiences, I would appreciate your recommendations.

Thanks!

BigBear440




:edgy:

 

[morbidgoat]

unless your engine is extremely pumped up 3/8 is plenty big enough

 

[Manifold]

1/2" wouldn't be necessary - you won't be needing the ability to move that much fuel with a 440 (unless it's a really radical, high HP motor). Factory 440 cars had a 3/8" feed with a 1/4" vapor/return line which worked well. I'd recommend sticking with that.

 

[69 Runner]

Six pack cars came from the factory with a 3/8". Why would you need anything more?

 

[Meep-Meep]

When all the fuel in a 1/2" line has to fill two carb bowls that have a seat orifice diameter of less that 1/8" what's the point? 3/8" is plenty and I bet even 5/16's will be fine.

 

[70WM21 W1 V6B]

Make sure you get the 3/8" sending unit also

 

[BigBear440]

Thanks for the help - going with 3/8 stainless - appreciate the advice