ARP Con rod bolt
Mini: Cooper S MK1 and MK2 with 1071 and 1275 cc engines plus Cooper S MK3 with 1275 cc engine with engine code 12H397 xxx + 12H398 xxx ? 1275 cc A-plus series engine
high grade 8470 chrome moly with a tensile strength of 220.000 psi ensure substantial strength and reduce stretching - Replacement for con rods part-no. 517804 + 517805
ARP is one of the most renowned screw manufacturers for motorsport: well-known racing teams from Formula 1, Nascar and Indycar series trust the excellent quality.
The threads are rolled into high-strength steel. This non-cutting process does not interrupt the fibre flow, unlike thread cutting. On the contrary, the cold forming process hardens the structure of the surface.
The benefit lies in the high safety reserves of the most heavily loaded components in the engine.