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BD40-8140-1-SS
By eliminating hot spots
90° Full Flow AN Bulkhead -16ANBlue Finish
The 2-3/8" drop has a notch to clear the wire harness cover on GM columns
ARP Pro Series Cylinder Head Studs 135-4006 Roll Over Valves BD40-8140-1-SSBrand: ARP Manufacturer's Part Number: 135 4006 Part Type: Cylinder Head Fasteners Product Line: ARP Pro Series Cylinder Head Studs Automotive Fittings Part Number: ARP 135 4006 UPC: 672036002428 Fastener Style: Stud Thread Size: 1 2 in. 13 Undercut Stud: No Head Style: Hex Fastener Material: 8740 chromoly Fastener Color: Black Washers Included: Yes Quantity: Sold as a kit. Notes: With GM aluminum block. Description: ARP Pro Series cylinder head studs