Wedge-Locking Header Bolts Hex Head 3/8 Diameter X 3/4 Inch Blk Oxide 16 Pcs Proform Exhaust Header Collector Gasket This engine timing chain cover

This engine timing chain cover is manufactured from high quality steel material

5 inch diameter and 3-7/8 inch height

Note: Starter is a midsize and may have clearance issues with select headers and oil pans

Kit includes upper and lower rear control arms

Wedge-Locking Header Bolts Hex Head 3/8 Diameter X 3/4 Inch Blk Oxide 16 Pcs Proform Exhaust Header Collector Gasket This engine timing chain coverEach 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