Manifold to uppipe bolt size

ccmac · Apr 30, 2014

Can any one tell me the size of the manifold to up pipe bolts?

I have a used set of bellowed up pipes ill be installing with my 38r and plan to just go to the auto parts store and get a bolt thats close to size that will work...

lincolnlocker · Apr 30, 2014

ccmac said:
Can any one tell me the size of the manifold to up pipe bolts?

I have a used set of bellowed up pipes ill be installing with my 38r and plan to just go to the auto parts store and get a bolt thats close to size that will work...

Sorry, i dont know the exact size but Riffraff or diesel orings can prolly next day ship them..

live life full throttle

gnxtc2 · Apr 30, 2014

The bolts and nuts are not generic. The nuts are crushed to prevent them backing off.

Billy T.
[email protected]

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ccmac · Apr 30, 2014

Yes, but i just dont see any reason why a locking flanged nut and flanged bolt wouldnt work of the right size. Ive worked on many things where factory item was unique, and though it might not be factory something simple as that could be done easier. Guess ill do some r and d and go to the local oil field fastener store and figure it out...

njjeep · May 1, 2014

I think mine are 5/16" stainless bolts. Just make sure you use a locking nut.

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Obsledpuller · May 1, 2014

Iirc they are either 3" or 3 1/2" long.

fbilly420 · May 1, 2014

5/16" or 8mm bolt is 2 3/8" in length

ccmac · May 1, 2014

Thanks guys ill pick some up

Dan V · May 1, 2014

The bolts sent with my Dorman uppies are 8mm x 1.25 - 60mm flange bolts (10mm head). The nuts are flanged as well, and are not locking.

Southmike · May 7, 2014

Can always add a second nut if threads allowi bought the bolt kit from riffraff.
Packaging and ups took ten days and they did not come with nuts.....
i forgot where they were located when i ordered.

But the price difference between ford and them seems well worth it.
if you can wait. If not pay for the shipping upgrade.