Banjo bolts

blackshadow · #1 (**permalink**) 11-14-2010, 03:52 PM

What Ex actually are the banjo bolts and are they worth replacing on a 2006 6.0?

**bondsman** · #2 (**permalink**) 11-14-2010, 04:07 PM

They are the bolts on the head side of the fuel lines. They have 2 crush washers as well. Just follow the hard fuel lines from the fuel bowl to each head and you will see them.
Basically, the stock banjo bolts have smaller holes and a restrictive check valve. The 6.4l banjo bolts have larger holes and no check valve. The theory behind this is that the updated bolts will allow more fuel to pass which would save your injectors from starving during WOT. It is cheap insurance. About $8 a side.

blackshadow · #3 (**permalink**) 11-14-2010, 04:33 PM

Hey Bondsman what if you already have the upgraded fuel pressure spring? Do you still need the 6.4 banjo bolts?

07OUTLAW · #4 (**permalink**) 11-14-2010, 04:35 PM

I did both at the same time.

Yes, you will still see the benifit from the upgraded banjo bolts.

**bondsman** · #5 (**permalink**) 11-14-2010, 04:38 PM

Just like outlaw said. Do them both. It is inexpensive. I am in the middle of doing head gaskets/studs. I went ahead an bought the spring kit and the banjo bolts. They are both in now. Just waiting on injectors so i can button it up.