Coating the piston reduces friction and wear, reduces part operating temperature, can increase horse power and torque, reduce or eliminate detonation, and allow tighter piston to wall clearances for a better ring seal.
Regular price: $350.00
Your price: $325.00
The ARP VQ37VHR L19 Head and Main Stud Kit for the Nissan 370z and Infiniti G37.
The L19 head studs were produced due to head lift issues at high WHP where additional clamping force is needed. While standard ARP head studs can be torqued down to 65-70ft/lbs, these ARP made with 262,000psi tensile strength L19 steel can be torqued down to 90-95 ft/lbs easily, without breaking the stud. These are a direct drop in replacement, and require no special block modifications or machining.
ARP recommends the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (very critical on aluminum blocks). Finally, there are factors of easier engine assembly and proper alignment of caps every time.
Regular price: $870.00
Your price: $575.00
VQ37 Long Block Core
This core charge is charged when shipping an upgraded Long Block to you before you return your Long Block. The core charge will be refunded once a rebuildable core is returned to us.