Fenton Headers

[Krylon32]

What are the correct bolt lengths and sizes for my NOS Fenton headers? Don't want to get into the water jackets

 

[51 MERC-CT]

(4 front) 7/16" 14 x 1-3/16 "
(8 ) 3/8" 16 x 1-1/4" center and rear
Stock bolts but you will have to determine length as the flange
on the Fenton headers may vary in thickness from stock.

 

[KiWinUS]

Shouldn’t the left center lower bolt on originals be about an inch longer? I have 4 sets and that bolt is about 1 3/4 longer. I am away from home so can’t check exact lengths

 

[34PKUP]

Shouldn’t the left center lower bolt on originals be about an inch longer? I have 4 sets and that bolt is about 1 3/4 longer. I am away from home so can’t check exact lengths

For Fenton headers ??

 

[KiWinUS]

Yes original Fenton Headers. Can post pics when I get home from Moonshine Festival tomorrow.

 

[KiWinUS]

https://www.fordbarn.com/attachments/427750/
These are from an old post. These are mine. I now have 4 really nice sets one NOS. LOOKat the lower left center bolt. These have the Ford part number on them. Old and nice.

 

[51 MERC-CT]

https://www.fordbarn.com/attachments/427750/
These are from an old post. These are mine. I now have 4 really nice sets one NOS. LOOKat the lower left center bolt. These have the Ford part number on them. Old and nice.

Suppose the long bolt would be correct if the OP indeed has that variation of header, otherwise he would have to determine which length/s are needed.

 

[A bones]

Perhaps Driskel can help.

 

[glennpm]

- First clean all the exhaust manifold holes out.
- Using two long bolts, 3/8 and 7/16"; hand thread them in the block and measure the protrusion under the head or to the outside of the bolt head
- Deduct 1/8" to 1/4" from the insertion length
- add thicknesses of manifold flanges and any washers or lock washers if you plan on using them
- buy or custom cut the bolts to the dimensions you calculated

 

[CA Victoria]

The manifold pictured looks like the speedway version of Fenton’s original header. The lower bolt in the center flange is longer.

 

[KiWinUS]

The manifold pictured looks like the speedway version of Fenton’s original header. The lower bolt in the center flange is longer.

Open the picture in my post to see originals with longer bolt needed.

 

[tubman]

Open the picture in my post to see originals with longer bolt needed.

Looks like there may have been two types of original Fenton's, unless those are re-pops.

 

[Karl Wolf]

I used studs, and brass nuts...

Karl

 

[KiWinUS]

Looks like there may have been two types of original Fenton's, unless those are re-pops.

OR these are “THE ORIGINALS “