Home / Engine & Performance / Motor / 3/8 X .750″ 12pt header bolt kit “ARP Porsche 911 AC 3.6L & 3.8L crankcase thru bolt kit” has been added to your cart. View cart 3/8 X .750″ 12pt header bolt kit€ 26,70 3/8 X .750" 12pt header bolt kit quantity Add to cart SKU: ARP-100-1207 Categories: Bolts & Studs, Motor Brand: ARP Description Description Country of Origin: USA Related products Bolts & StudsEngine & Performance ARP cabinet with SS 12pt metric accessory bolts Bolts & StudsEngine & Performance ARP FORD 6.7L Powerstroke diesel CA625+ head stud kit Bolts & StudsEngine & Performance ARP Porsche 911 AC 3.6L & 3.8L crankcase thru bolt kit Bolts & StudsEngine & Performance ARP cabinet with accessory bolts