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Fits GM LS Engines with 3/8" Wide Flange

0 reviews
$197.000,00 $190.000,00
190000 ENTRIES
-3%
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Fits GM LS Engines with 3/8" Wide Flange

0 reviews
$197.000,00 $190.000,00
190000 ENTRIES

Proform
BCHW_66826
En stock

Fits GM LS Engines with 3/8" Wide Flange
Each PROFORM Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is 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. Its 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, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused.
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