Grade 5 intake bolts

[Kyle]

Hello all,

I am looking for used nice condition or NOS Intake Bolts marked 5 for an FE engine. Her is a picture of how I need them. I need 8 tall and 2 short.

Let me know if anyone have them please. Email kylezammit123@gmail.com or PM sent.

[Coralsnake]

AMK ?

[Bob Gaines]

FYI for those reading the 67 GT500 intake bolts could also have the mfg mark as a the grade five with a F in the center instead of the 5 and also the grade five with a L5 in the center.

[Bob Gaines]

AMK used to sell the L5 marked intake bolts but have run out and substitute a generic one now. 

[warwick]

Are those bolts in your picture correct?

My FE has place bolts-so I looked it up in LM MPL and for 65-72 FE's, it specs a place bolt PN 370478-S it has FORD on top. AMK has it-I think it even says FORD. Didn't Shelby use same bolts?

[Bob Gaines]

Are those bolts in your picture correct?

My FE has place bolts-so I looked it up in LM MPL and for 65-72 FE's, it specs a place bolt PN 370478-S it has FORD on top. AMK has it-I think it even says FORD. Didn't Shelby use same bolts?

The picture he posted is correct for a 67 GT500 duel four. intake.  The Grade 5 with a F or the L5 are the only other ones that typically came on the 67 GT500 from the Ford engine plant where they were installed. Unless something has changed (and I hope that it has ) AMK does not sell the assemblyline looking intake bolts for the 67 GT500 intake.

[Coralsnake]

So why cant those be sourced locally if they are just "5"

I have to believe the hardware store has those?

[shelbydoug]

These look like flanged head bolts? Are they?

[Bob Gaines]

These look like flanged head bolts? Are they?

No they use a loose flat washer.

[Bob Gaines]

So why cant those be sourced locally if they are just "5"

I have to believe the hardware store has those?

They do but they will not have the assemblyline makers marks on the hardware store bolts.

[Bob Gaines]

I don't think the number 5 in the center is the bolt grade . The 3 dash marks around the perimeter are the typical bolt grade symbols for a grade five bolt and the number 5 in the center is the makers mark. 

[Kyle]

I need the type how I post the picture please.

Thanks for the information.

[shelbydoug]

Here is a page reference to identifying bolt grades according to the head markings.

In the case of this particular bolt, 5 is not the grade of strength, it happens to be a grade 5 bolt but the 5 marking does not indicate the strength. It is the manufacturers logo.

It probably was never a very appropriate logo because of the confusion that it continues to create?

https://www.fastenersuperstore.com/fastener-guides/bolt-grades-head-markings

[Bob Gaines]

Here is a page reference to identifying bolt grades according to the head markings.

In the case of this particular bolt, 5 is not the grade of strength, it happens to be a grade 5 bolt but the 5 marking does not indicate the strength. It is the manufacturers logo.

It probably was never a very appropriate logo because of the confusion that it continues to create?

https://www.fastenersuperstore.com/fastener-guides/bolt-grades-head-markings

That is what I said in reply #10 ? Thank you for the confirmation.

[shelbydoug]

My reply is intended to add the visuals to the reply.

As you have pointed out previously in many other posts, there are other posters here that do not know basics. Possibly even as simple as how to research head bolt markings?
The link is just intended by me to be a visual aid.

It is not intended to ignore or diminish your #10 posting. 


In your concept of this forum as being an Encyclopedic source of information, if that is so, then additional footnotes or bookmarks can't hurt to reinforce the accuracy of some replies.