Suit Chev small block V8 Cam Lock Header Bolts Hex Head 3/8"-16 Thread 0.750" Uhl Set 12 Proform Parts PR66751
Proform Parts
Part No. PR66751
Regular price
$68.95 AUD
Regular price
Sale price
$68.95 AUD
Taxes included.
Shipping calculated at checkout.
SKU:PR66751
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Product Information
These Proform wedge locking header bolts are permanently assembled with a pair of special washers. When the bolts are 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 is blocked by a wedge-locking action created by the washers' interfacing, matching cams. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, the Proform wedge locking header bolts can be loosened with a normal wrench, lubricated, and reused
