Manufacturer's Part Number:
Summit Racing Part Number:
Underhead Length (in):
Sold as a set of 12.
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Made in the USA, Stage 8's Grade 8 locking header bolts use a patented system that consists of a grooved hex-head bolt, a retainer, and a snap clip. The retainer fits over the bolt head and locks the bolt against the header tube, and the snap clip holds the retainer in place. Once Stage 8 header bolts are tightened down, they won't back out, eliminating leakage and blown header gaskets from loose bolts.