ARP L19 Head Studs are recommended for VG30DE(TT) engines trying to achieve maximum horsepower and RPM range.  Through our research and testing we have found that at very high power levels OEM Head Bolts or typical ARP Head Studs can stretch causing the cylinder heads to lift off of the block blowing head gaskets and forcing oil and coolant outside the engine causing thousands of dollars worth of labor and machine work.  The solution to this is to increase the clamping force (torque) on the cylinder head fasteners.  In order to do this the strength and resistance to stretch must be increased on the fasteners.  For that purpose we now offer ARP L19 Head Studs.

INCLUDES:

• 16 - ARP L19 Head Studs (14 Long / 2 Short)
• 16 - ARP Head Stud Nuts
• 16 - ARP Head Stud Washers
• 1 - ARP .5oz Moly Lube Packet

L19: This is a premium steel that is processed to deliver superior strength and fatigue properties. L19 is a very high strength material compared to 8740 and ARP2000 and is capable of delivering clamp loads in the 230,000-260,000 psi range. It is primarily used in short track and drag racing applications where inertia loads exceed the clamping capability of ARP2000. Like most high strength, quench and temper steels – L19 requires special care during manufacturing to avoid hydrogen embrittlement. This material is easily contaminated and subject to stress corrosion. It must be kept well-oiled and not exposed to moisture.

Spend a few extra dollars on your engine for peace of mind knowing that it is secured with the best upgraded studs on the market.