ARP Cylinder Head Bolts for BMW E92 M3 S65 4.0L

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ARP Cylinder Head Stud Kit - E9X M3 S65

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:554124

Part#: 201-4307

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$ 363.99 USD

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$ 363.99 USD

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ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated, ensuring complete heat penetration, to increase the clamping load up to 200,000 psi. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

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ARP Cylinder Head Bolts for BMW E92 M3 S65 4.0L

ARP Cylinder Head Stud Kit - E9X M3 S65

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