Tag: 66756

In the Garage™ with Parts Pro™: Hedman Hedders HTC Coated Shorty Hedders

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Come inside the Parts Pro™ garage as we take you through the installation of some of today’s hottest performance accessories In this episode, we install the HTC Coated Shorty Hedders from Hedman Hedders on 1967 Shelby GT 350.

Parts used in this video:

HTC Coated Shorty Hedders (88656)

Proform Wedge-Locking Header Bolts (66756)

Proform Wedge-Locking Collector Bolts (66757)

Want to check out more about Hedman Hedders?
https://partspro.com/manufacturer/hedman-hedders

 

Ready to buy? Need help with the install? To find your nearest Parts Pro affiliate, see our Store Locator. Or join the conversation at the Parts Pro Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.

PROFORM: Wedge-Lock Header Bolts

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Each PROFORM Class 12.9 (equiv. Grade 8) Header Bolt is permanently assembled with a pair of special wedge-locking washers. When the bolt is torqued to 28+ ft.-lb., the washers’ super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers’ interfacing, matching cams. It’s an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this design uses tension instead of friction, contact with oil actually facilitates the wedge-locking effect. When it comes time to change headers, PROFORM Header Bolts can be loosened with a normal wrench, lubricated, and reused.

Available in:

  • 0.984″ x 8 mm, 12 bolts (66754)
  • 1.181″ x 8 mm, 12 bolts (66755)
  • 1″ x 3/8″, 16 bolts (66756)
  • 3/4″ x 3/8″, 16 bolts (66752)
  • 3/4″ x 3/8″, 12 bolts (66751)
  • 1″ x 3/8″, 12 bolts (66753)

    PROFORM 66754
    PROFORM 66754

Ready to buy? Need help with the install? To find your nearest Parts Pro affiliate, see our Store Locator. Or join the conversation at the Parts Pro Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.