Home / Engine & Performance / Motor / Merlin block. Brodix head BB 12pt valve cover bolt kit “ARP Head Bolt Kit Caterpillar C15 8740 12pt” has been added to your cart. View cart Merlin block. Brodix head BB 12pt valve cover bolt kit€ 36,64 Merlin block. Brodix head BB 12pt valve cover bolt kit quantity Add to cart SKU: ARP-100-7520 Categories: Bolts & Studs, Motor Brand: ARP Description Description Country of Origin: USA Related products Bolts & StudsEngine & Performance ARP cabinet with black hex accessory bolts Bolts & StudsEngine & Performance ARP cabinet with accessory bolts Bolts & StudsEngine & Performance ARP GM DURAMAX 6.6L L5P CA625+ HEAD STUD KIT Bolts & StudsEngine & Performance ARP Porsche 911 AC 2.0L & 2.7L crankcase thru bolt kit