ARP Header Bolt - 8 mm x 1.25 Thread - 0.984 in Long - Hex Head - Washers Included - Chromoly - Black Oxide - GM LS-Series - Set of 12 931072 Less under hood radiant heat QRP50-820 Windshield Size:Large/X-Large Mounting Bolt Pattern 2

Less under hood radiant heat results in a cooler air charge for improved performance and keeping exhaust gases hotter within the exhaust system helps in decreasing exhaust density & increases exhaust flow

Kit Includes 2 Spacers and all necessary mounting hardware

a 1/2" pipe fitting for a line to your water pump is near the bottom and an 1/8" fitting for water overflow is provided in the 6061-T6 billet aluminum filler cap housing

BMR's polyurethane cradle bushings replace the entire OE rubber bushing

ARP Header Bolt 8 mm x 1.25 Thread 0.984 in Long Hex Head Washers Included Chromoly Black Oxide GM LS Series Set of 12 931072 Less under hood radiant heat QRP50 820 Windshield Size:Large X Large Mounting Bolt Pattern 2 Less under hood radiant heat results in a cooler air charge for improved performance and keeping exhaust gases hotter within the exhaust system helps in decreasing exhaust density & increases exhaust flow Kit Includes 2 Spacers and all necessary mounting hardware