ARP Complete Main Stud Kit
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Description
There are many important reasons to use ARP Main Stud Kits on your 1984-89 Nissan 300ZX & 300ZX Turbo (Z31 Chassis), including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block.
ARP uses a premium quality 8740 chrome moly steel alloy that is rated superior to aircraft quality. Each stud is placed vertically in special racks and heat-treated to ensure 360° penetration. This procedure is far superior to other methods of dumping items in a large bin and batch treating.
Following heat-treatment, each stud is shot-peened to remove surface irregularities, and then undergoes a centerless grinding process to ensure they are perfectly concentric. This procedure involves about ten machining steps for an exceptionally straight part.The studs are then thread rolled after heat-treatment, which gives them about 1000% (10 times) more fatigue strength than those studs that are threaded prior to heat-treatment.
ARP Fastener Nuts are manufactured in a multi-step process that “blanks” the hex and 12-point nuts and is followed by a CNC-threading process which taps each nut with an accuracy of .001K (5 times higher than the aerospace standard). This ensures an exceptionally close-tolerance fit between the bolt/stud and nut.
This main stud upgrade kit for your Z31 300ZX engine includes:
- Eight (8) ARP Main Studs
- Eight (8) ARP Fastener Nuts
- Eight (8) ARP Premium Parallel-Ground Washers
Product Data
- Weight
- 4 kg
- Dimensions
- 10 × 13 × 3 cm
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- Fits
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Product Notes
– Will fit SOHC VG30 and VG33 engines.
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