PRE Tuning

PRE head stud kit for Nissan QR25DE engine

What is new at PRE? Recently released and selling all over United Stated and even internationally. We are talking about the head stud kit for the Nissan QR25DE engine. We worked with ARP to make this kit available. No more using factory inferior torque to yield bolts.

PRE FASTENER ADVANTAGE:
PRE head stud kit is made to order by ARP and includes 10 head studs, 10 specialty nuts, 10 parallel ground washers, 1/2 oz. pack of ARP Ultra-Torque fastener assembly lubricant, and installation instructions. All Pro Series studs are centerless ground, heat treated prior to thread rolling and machining, and are nominally rated at 220,000 psi. These fasteners deliver a 50% increase in tensile strength over the OEM head bolts.

 

ADVANTAGE: HEAD STUD VERSUS HEAD BOLT:
-More accurate torque preload of the fastener. PRE studs, unlike bolts, do not twist during torque process, thus giving you a more accurate reading than traditional bolts that twist.
-Elimination of cylinder head lift. Cylinder head lift occurs when extremely high combustion pressure loads force cylinder head separation from the gasket interface, lifting it off the block mating surface, and blowing the head gasket.
-Reduction of head gasket fretting. Head gasket fretting is micro-motion between cylinder head, head gasket, and block interface resulting in the material loss at the joint. 
-More consistent alignment of cylinder heads. PRE studs installed prior to head gasket and cylinder head help with alignment and seating.
-Faster and more accurate engine assembly and disassembly

KIT CONTENT:
-10 head studs
-10 nuts
-10 washers
-assembly lubricant
-installation instructions

APPLICATIONS:

  • Nissan Altima
  • Nissan Sentra
  • Nissan Frontier
  • Nissan Murano (Japanese market)
  • Nissan Rogue
  • Suzuki Equator

Price: $170 shipped in the USA. International shipping available.

ARP HSK stock photo


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