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- CAN
Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
For Your Every Summer RSVP, with Code: SUMMER15
Description
Proform Wedge Locking Header Bolts (PR66752)WEDGE LOCKING HEADER BOLTS 16 3 4" UHL x 3 8 16" (Set Of 16) Part Number: PR66752 Fits: GM BB 396 502 exc 348 & 409 Ford 5. 0L, SB 289 302 351W, Mopar 413 Each PROFORM Grade 8Header Bolt is permanently assembled with a pair of special washers. When the boltis torqued to 28+ ft lbs, 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
WEDGE LOCKING HEADER BOLTS 16
3/4" UHL x 3/8-16" (Set Of 16)
Part Number: PR66752
Fits: GM BB 396-502 exc 348 & 409 Ford 5.0L, SB 289-302-351W, Mopar 413
Each PROFORM Grade 8Header Bolt is permanently assembled with a pair of special washers. When the boltis torqued to 28+ ft-lbs, 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 isblocked 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 simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORMHeader Bolts can be untightened with a normal wrench, lubricated, and reused.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy