Brand: Automotive Racing Products (ARP)
Keep the exhaust headers in place on your Chevy engine with premium ARP header bolts!  These bolts are precision-manufactured from a special corrosion-resistant stainless steel alloy rated to 180,000 psi tensile strength.  
The 3/8-16 bolts in this set fit big block Chevrolet V8 engines.  The 1" underhead length is a little longer than standard to fit extra-thick header flanges.  The flanged 12-point head takes a small 3/8" socket for extra clearance on oversized header tubes.  Set of 16 bolts with matching washers, enough for one engine.