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A large number of connecting rod manufacturers have chosen ARP bolts as standard equipment
Lightweight construction
000˝ Grip Length 2˝ Thread Diameter-Pitch 1/4-20 Grip Diameter 1/4˝ Wrenching 5/16˝ Head Height 0
Specifications Socket Size(s) 12mm 12pt Material: Stainless Steel
ARP 203-4706 Head Stud Kit CA 625+ for BMW B58 ymm_21 A large number of connectingAs you increase the power output of your engine beyond its factory specifications, the head and block may start to separate, causing factory bolts to stretch and fail. ARP Head Studs are stronger than factory bolts, ensuring your race engine stays together even under extreme conditions. The Custom Age 625+ option 203 4706 is made from ARP's 625+ material that has a tensile strength of 260 ksi, substantially higher than the 190 ksi of the ARP 2000 head
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