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SKU: 301-8354 | UPC: 672036040864
ARP 7/16in 8740 Black Oxide 12-pt Nut Kit Chevrolet Small Block 1955-2004
ARP 7/16in 12-point nut kit provides essential hardware for connecting rod bolts in Chevrolet Small Block engines 1955-2004 including 262-400ci applications. Forged from 8740 chrome moly steel with 180,000 PSI tensile strength these nuts deliver secure clamping under high loads. Black oxide finish resists corrosion for long-term engine reliability in street and race builds.
Key Features
- 8740 Chrome Moly Steel: Forged construction achieves 180,000 PSI tensile strength to handle extreme torque and vibration
- 12-Point Design: Precision machined heads offer superior wrench engagement to prevent rounding during installation and removal
- Black Oxide Finish: Provides corrosion resistance and lubricity for consistent performance in harsh engine environments
- Thick Wall Build: Enhances rigidity and strength ideal for high-horsepower connecting rod applications
- Kit Quantity: Includes 12 nuts sized 7/16-14 x 0.875in for complete rod sets in Small Block Chevy engines
Product Notes
- Thread size 7/16-14 matches ARP Pro Series rod bolts CR8070 series
- Use ARP Ultra-Torque fastener lubricant for accurate torque values
- Kit weighs 0.31 lbs securely packaged for fast delivery
Installation Notes
- Professional installation recommended.
- Torque to ARP specifications typically 65-80 ft-lbs depending on rod bolt
- Compatible with ARP connecting rod bolts in 7/16in diameter for SBC engines
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1955-1957 | Chevrolet | Bel Air | All |
| 1955-2004 | Chevrolet | Camaro | Base, RS, SS, Z/28, LT |
| 1964-1972 | Chevrolet | Chevelle | Base, SS, Malibu |
| 1955-1967 | Chevrolet | Corvette | Base, Stingray |
| 1958-1972 | Chevrolet | Impala | All V8 |
| 1962-1979 | Chevrolet | Nova | All V8 |
| 1967-1985 | Chevrolet | Camaro | All Small Block V8 |
Why Choose ARP?
- ARP leads in high-performance fasteners trusted by NHRA Pro Stock teams
- Every nut exceeds SAE standards for tensile and fatigue strength
- Precision CNC machining ensures exact fit and repeatable torque
Frequently Asked Questions
-
Q: Which Chevy engines use these 7/16in nuts?
A: Fits Small Block 262-400ci V8s in Camaro Corvette Chevelle Impala Nova Bel Air 1955-2004 with ARP rod bolts -
Q: What material and strength rating?
A: 8740 chrome moly steel rated 180,000 PSI tensile black oxide finish for durability -
Q: How many nuts in the kit and warranty?
A: 12 nuts per kit ARP lifetime warranty against manufacturing defects when installed correctly
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box
- Weight: 0.31 lbs
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ARP (Automotive Racing Products) is the world’s premier manufacturer of high-strength engine and driveline fasteners—head studs and bolts, main studs, rod bolts, and more—engineered and manufactured in-house from start to finish for race-proven reliability. With vertically integrated processes that include cold heading, machining, heat-treating, thread rolling after heat treat, and rigorous QA, ARP maintains aerospace-level certifications (ISO 9001 and AS9100) and validates every part for repeatable clamp load and fatigue resistance. Signature alloys such as 8740 chromoly, ARP2000, L19, and Custom Age 625+ deliver ultimate tensile strengths up to the super-alloy range, while ARP Ultra-Torque fastener assembly lubricant helps achieve consistent pre-load during installation. From street performance builds to professional motorsport programs, ARP fasteners provide precise fitment, superior metallurgy, and the durability needed to keep engines together at elevated cylinder pressures and...
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