Product Summary

1" Under Head Length, 7/16"-14 Thread Pitch, Polished

  • Stainless Steel Flathead Ford V8 Fenton Header Bolts
  • Allen head design
  • Set/12
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Key Specs

MFG. Part #91303960
BrandSpeedway Motors
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Need To Know

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Speedway Motors 91303960 Details

Premium stainless steel socket head bolts for your Flathead Ford cast Fenton Headers. Each kit includes stainless steel AN washers.

Speedway Motors 91303960 Specifications

KEY SPECS
MFG. Part #91303960
BrandSpeedway Motors
GENERAL
Under Head Length1"
Thread Pitch7/16"-14
Thread Pitch (2)3/8"-16
Wrench TypeAllen
Material TypeStainless Steel
FinishPolished
Sold in QuantitySet
NotesSet of 12 bolts. (4) bolts are 7/16"-14 and (8) bolts are 3/8"-16. Includes washers.

Ratings & Reviews

4.6

7 Reviews

Overall Assessment

Customers found the product to be highly practical, making it suitable for enhancing the style of their vehicles and fitting onto Fenton headers. It was said to be of good quality and offered strong usability, given some necessary modifications. Although some customers pointed out a slight issue with the thread length, the product's performance and usability stood out. Many customers recommended the product for its essential role in the installation of Fenton Headers, marking it as superior to its competitors. Users also appreciated that it functioned as described.

4.6

7 reviews

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I would recommend this product

5.0

a year ago

Jerald

Rapid City s.d.

Verified

We're used to attach fenton headers to 46ford flathead

Would Recommend

Good quality

4.0

2 years ago

Dan

Austin, TX

Verified

Bought these for installing block huggers in a 52 Mainline. The heads are large so they were great for 10 of the 12 bolts but a couple of the locations were too tight and I had to use the crappy included ones there.

Would Recommend

I would buy again

5.0

2 years ago

pelhawks1

kansas city

Verified

Used to add some style to my flathead.

Would Recommend

would recommend

4.0

4 years ago

jj

colorado

Verified

using with fenton headers

Would Recommend

Parts arrived quickly to New Zealand

5.0

5 years ago

Flatheads Forever

Hamilton New Zealand

Verified

Haven't fitted yet as the have been sent away to be Hiper coated but looked the part

Would Recommend

SHCS Set Essential for Fenton Headers

4.0

5 years ago

Crossmember CC Neil

Lake Mills, Wisconsin

Verified

We installed Fenton Headers in a 39 Ford Deluxe with engine in the car. I do not recommend doing so. Without socket head cap screws it would be nearly impossible to install cast iron Fenton Headers. Even with socket heads we had to modify our 3/8 drive Allen drivers (5/16 & 3/8), cutting ball drive Allen wrenches to suit. The thread length is marginal (short), only about 1/2" engagement. The stock exhaust fasteners engaged much further. The socket opening in the head is very tight, adding to the challenge. (Please ignore the red high temp RTV smeared around, it will get cleaned off.)

Would Recommend

Header bolts

5.0

6 years ago

Kt

Or

Verified

As described work well

Would Recommend

Showing 7 of 7 reviews

Questions & Answers

1 Question • 1 Answer

What size are these bolts

by ErnieChilton

• 11 years ago

1 answer

1 of 1 questions shown

Fitment

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  • Ford FE V8 SOHC Cammer 427

  • Ford FE V8 Gen 2 427 Side Oiler

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  • Ford FE V8 SOHC Cammer 427

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  • Ford FE V8 SOHC Cammer 427

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  • Ford FE V8 Gen 2 427 Top Oiler

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  • 255 Ford Flathead V8

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  • Ford FE V8 SOHC Cammer 427

  • Ford FE V8 Gen 2 427 Side Oiler

  • Ford FE V8 Gen 2 427 Top Oiler

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  • Ford FE V8 Gen 2 427 Top Oiler

  • 428 Ford FE V8

  • 428 Ford FE V8

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  • Ford FE V8 Gen 2 427 Side Oiler

  • Ford FE V8 Gen 2 427 Top Oiler

  • 428 Ford FE V8

  • 428 Ford FE V8

  • 221 Ford Flathead V8

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  • 337 Ford Flathead V8

  • Ford FE V8 SOHC Cammer 427

  • Ford FE V8 Gen 2 427 Top Oiler

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  • Ford FE V8 Gen 2 427 Side Oiler

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  • 255 Ford Flathead V8

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  • Ford FE V8 Gen 2 427 Side Oiler

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  • Ford FE V8 Gen 2 427 Side Oiler

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  • Ford FE V8 Gen 2 427 Top Oiler

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