Exhaust pipe flanges & donut rings ?

[Blueflame236]

I need to know if i can use the standard 1950 truck exhaust pipe flanges and donut tightning rings to fit the Fenton dual exhaust headers or do they have other measurements ? In that case what size are they and where can i buy these ?

Martinius.

 

[coilover]

I have done this in a pinch and gotten by but ONLY when the tapered edge of the donut that fits the manifold fits a little (about a third of the way) down into the hole in the flat flange. If the edge of the donut is on the flange then it's probably going to leak before long. You really need to flare the pipe ends and use slip flange clamps.

 

[Blueflame236]

Evan thanks for the reply on question Exhaust pipe flanges!

Thanks Evan for the reply!

Are there any exhaust pipe flanges/gaskets availeble in the parts shop that i can use to match the Fenton headers or do i have to make those flanges my self ? It would have been very easy to buy them instead of using the tourch ? How do the slip flange clamps look like as i am not familiar with the discription ?

Martinius.

 

[coilover]

The old flat flanges are welded to the pipe while the newer donut type has the pipe flared at the end for the donut gasket to fit. The clamp is put on the pipe before it's flared and slides up over the studs so when tightened with the nuts on the studs it squeezes the donut between the taper in the manifold and the taper of the flared pipe end. The factory used a stamped out clamp but you can make one from 5/16 or 3/8 inch plate ( about 10mm) with a hole a bit larger than the pipe diameter in the center and two holes spaced to slide over the studs. You can even heat the pipe ends and form your own flares; they don't have to be exact as the donut will form to some irregularities.

 

[Blueflame236]

New Exhaust pipe flanges/gaskets from Patricks Casa Grande!

I made a phonecall to mr. Partick Dykes in Patricks antique cars and trucks about the need of buying the exhaust pipe flanges/gaskets for the Fenton dual headers. The answer is that Patricks have these on the shelf but sells also complete exhaust systems for the new setup. The flanges are CNC made in steel and are to be welded on the upper part of the pipe.

Happy ending afterall