The Ford Barn

Krylon32 · 10-22-2022, 10:52 AM

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 · 10-22-2022, 02:26 PM

(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 · 10-22-2022, 03:11 PM

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 · 10-22-2022, 03:48 PM

Quote:

Originally Posted by 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

For Fenton headers ??

KiWinUS · 10-22-2022, 05:02 PM

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

KiWinUS · 10-22-2022, 06:08 PM

Sponsored Links (Register now to hide all advertisements)

https://www.fordbarn.com/forum/attac...0&d=1587224341
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 · 10-23-2022, 02:29 AM

Quote:

Originally Posted by KiWinUS

https://www.fordbarn.com/forum/attac...0&d=1587224341
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 · 10-23-2022, 07:19 AM

Perhaps Driskel can help.

glennpm · 10-23-2022, 08:36 AM

- 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 · 10-23-2022, 08:46 AM

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

KiWinUS · 10-23-2022, 09:49 AM

Quote:

Originally Posted by CA Victoria

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 · 10-23-2022, 12:01 PM

Quote:

Originally Posted by KiWinUS

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 · 10-23-2022, 12:34 PM

I used studs, and brass nuts...

Karl

KiWinUS · 10-23-2022, 12:42 PM

Quote:

Originally Posted by tubman

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

OR these are “THE ORIGINALS “

10-22-2022, 10:52 AM	#1
Krylon32 Senior Member Join Date: May 2010 Posts: 4,489	Fenton Headers What are the correct bolt lengths and sizes for my NOS Fenton headers? Don't want to get into the water jackets

10-22-2022, 02:26 PM	#2
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: Fenton Headers (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. __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES Last edited by 51 MERC-CT; 10-22-2022 at 02:38 PM.

10-22-2022, 03:11 PM	#3
KiWinUS Senior Member Join Date: May 2010 Location: Charlotte NC KiWi-L100 available here Posts: 2,963	Re: Fenton Headers 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

10-22-2022, 05:02 PM	#5
KiWinUS Senior Member Join Date: May 2010 Location: Charlotte NC KiWi-L100 available here Posts: 2,963	Re: Fenton Headers Yes original Fenton Headers. Can post pics when I get home from Moonshine Festival tomorrow.

10-22-2022, 06:08 PM	#6
KiWinUS Senior Member Join Date: May 2010 Location: Charlotte NC KiWi-L100 available here Posts: 2,963	Re: Fenton Headers Sponsored Links (Register now to hide all advertisements) https://www.fordbarn.com/forum/attac...0&d=1587224341 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.

10-23-2022, 07:19 AM	#8
A bones Senior Member Join Date: May 2010 Location: CLAYTON DE Posts: 1,283	Re: Fenton Headers Perhaps Driskel can help. __________________ Enjoy yer day. Tom Hate can't fix what it started.

10-23-2022, 08:36 AM	#9
glennpm Senior Member Join Date: Sep 2014 Location: Wiscasset, Maine Posts: 1,981	Re: Fenton Headers - 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

10-23-2022, 12:34 PM	#13
Karl Wolf Senior Member Join Date: May 2010 Location: Mill Valley,Ca. Posts: 1,509	Re: Fenton Headers I used studs, and brass nuts... Karl