ARP 7/16 inch-20 Hex Nut Kit

SKU: 200-8606

ARP 7/16 inch-20 Hex Nut Kit for Chevrolet Small Block and LS Engines (1955-2023)

ARP 7/16 inch-20 hex nut kit (SKU 200-8606) includes 50 precision nuts for connecting rods main studs and cylinder heads in high-performance Chevrolet small block V8 and LS engines. This kit provides consistent clamping force and vibration resistance for racing or street applications under extreme conditions. Engine builders rely on ARP nuts for dependable performance in boosted or nitrous setups across 1955-2023 models.

Key Features

• Thread Size: 7/16 inch-20 fine thread matches ARP rod bolts and main studs for exact fit and smooth engagement
• Material: Forged 8740 chromoly steel resists fatigue and stretching at high horsepower levels
• Quantity: 50 nuts per kit provides complete sets for multiple rods or heads in rebuilds
• Finish: Black oxide coating prevents corrosion and galling during repeated installations
• Heat Treatment: Processed to ARP 200000 PSI tensile strength specs for endurance in boosted or nitrous setups

Product Notes

• Verify thread compatibility with existing ARP bolts before use
• Apply ARP Ultra-Torque lubricant for accurate torque values
• Kit ships in protective packaging to prevent damage

Installation Notes

• Professional installation recommended.
• Torque to ARP specifications using calibrated wrench and angle method
• Compatible with all ARP 7/16-20 rod bolts and head studs

This Part Fits

Year	Make	Model	Submodel
1955-2002	Chevrolet	Small Block V8	262-400 cid
1997-2023	Chevrolet	LS Series V8	LS1 LS6 LQ4 LQ9
1965-1996	Chevrolet	Big Block V8	396-454 cid
1967-2002	Chevrolet	Camaro	V8 Models
1962-2013	Chevrolet	Corvette	C2-C7 V8
1960-1987	Chevrolet	Chevy II Nova	V8 Models
1973-1991	Chevrolet	Camaro	Z28 SS

Why Choose ARP?

• Proven in NHRA Top Fuel and NASCAR for decades of reliability
• Every nut exceeds SAE ARP standards for strength and consistency
• Made in USA with tight tolerances for zero defects

Frequently Asked Questions

• Q: Does this kit fit LS1 connecting rods?
  A: Yes ARP 200-8606 nuts pair perfectly with 7/16-20 ARP rod bolts on GM LS1 LS6 and Gen III/IV engines
• Q: What material are the nuts made from?
  A: Forged 8740 chromoly steel heat treated to 200000 PSI with black oxide finish for durability
• Q: Is there a warranty?
  A: ARP offers a limited lifetime warranty against manufacturing defects when installed and torqued correctly

Shipping & Handling

• Method: UPS Ground or USPS Priority
• Availability: Special order – ships within 1-3 business days
• Packaging: Compact box 5 x 4 x 1 inches
• Weight: 0.8 lbs