Pay in 4 interest-free payments of $9.50 Learn more
Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
Also Includes Electronic Control Unit Box
Oil filled gauge for smooth needle motion
RB and Hemi Engines
Each kit comes with 2 gaskets
polished to a brilliant luster
Wedge-Locking Header Bolts Hex Head M8 X 1.18 1 Inch Chevy LS Nickel Plt 12 Pcs Proform Scale Also Includes Electronic Control UnitEach 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
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