ARP 8740 1/2" Head Stud Kit - 2003+ LS 427 LS 12″ (3 mm)

12″ (3 mm)

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Our street/strip series 5

107 LSA) this combination made 496HP/479TQ and with the upgrade to the FED Boostline Cylinder Heads made over 500HP

Exclusive high performance porting programs via 5-Axis CNC – Intake/Exhaust/Chambers

ARP 8740 1/2" Head Stud Kit - 2003+ LS 427 LS 12″ (3 mm)Boostline Performance in combination with ARP Fasteners has put together an affordable 1 2" head stud set for 03+ Gen III and Gen IV LS engines! These 1 2" Studs are made from ARP 8740 material, adding additional clamping force and head gasket stability for boosted applications on stock blocks. Any Boostline Engine package can be drilled and tapped for this 1 2"stud option! Or you can do it yourself by drilling tapping Tick Performance drilling