ARP Headstuds
Product number:
20000.4
Product information "ARP Headstuds"
ARP cylinder head studs
High quality 8740 CrMo alloy. Tensile strength of 1380 N/mm² (compared to a standard 10.9 screw only has a tensile strength of approx. 900 N/mm²).
After hardening, the thread is rolled on, allowing 10 times the fatigue strength.
Advantage over conventional cylinder head bolts: The tightening load is shifted from the engine block to the bolt heads. This protects the thread surfaces in the engine block.
After hardening, the thread is rolled on, allowing 10 times the fatigue strength.
Advantage over conventional cylinder head bolts: The tightening load is shifted from the engine block to the bolt heads. This protects the thread surfaces in the engine block.