SKU: 300-8374
ARP 7/16″-20 x 9/16″ 12-Point Socket Nut Kit for 1955-2004 Chevrolet Small Block Engines
ARP 300-8374 nut kit includes 8 precision 12-point nuts for 7/16″-20 ARP connecting rod bolts. Designed for Chevrolet Small Block engines in Camaro, Corvette, Nova, and truck applications from 1955 to 2004. Engineered to maintain consistent clamp load under high stress for dependable rod retention in performance motors.
Key Features
- 12-Point Design: Fits 9/16″ socket for exact wrench grip that prevents stud rounding and supports precise torque delivery
- 8740 Chromoly Construction: Heat-treated alloy steel withstands extreme fatigue and delivers high tensile strength over 200,000 psi
- Matched 7/16″-20 Thread: Perfect fit for ARP Pro Series and 2000 Series rod bolts in V8 engines
- 8-Piece Kit Quantity: Complete set for one V8 connecting rod assembly with no shortages during builds
- Race-Proven Durability: Handles high-rpm demands in street, drag, and circle track racing without loosening
Product Notes
- Inspect rod bolts for matching 7/16″-20 threads before use
- Apply ARP Ultra-Torque lube to threads and under nut faces for accurate torque readings
- Low-profile packaging protects components during transit
Installation Notes
- Professional installation recommended.
- Torque nuts to ARP specs of 65 ft-lbs with moly lube or 75 ft-lbs with Ultra-Torque using sequence
- Requires ARP rod bolts. not compatible with OEM hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1955-2002 | Chevrolet | Small Block Engines | 262-400 cid All |
| 1962-2004 | Chevrolet | Corvette | Base / Stingray / Z06 |
| 1967-2002 | Chevrolet | Camaro | SS / Z28 / Firebird |
| 1964-1987 | Chevrolet | Chevelle | Malibu / SS |
| 1960-1987 | Chevrolet | C10 Pickup | All V8 |
| 1969-1995 | Ford | Mustang | 302 / 351W |
| 1965-1996 | Chevrolet | Big Block Mark IV | 396-454 cid |
Why Choose ARP?
- Trusted by NHRA and NASCAR teams for critical engine fasteners
- 8740 and proprietary alloys exceed SAE Grade 8 strength ratings
- CNC machined threads and faces for zero defects and repeatable clamping
Frequently Asked Questions
- Q: Do these fit a stock Chevy 350 small block?
A: Fits performance builds with ARP 7/16″-20 rod bolts installed. stock rods use smaller 11/32″ bolts - Q: What is the material and strength rating?
A: Forged 8740 chromoly steel heat-treated to over 200,000 psi tensile strength for extreme duty - Q: Are torque specs and instructions included?
A: Kit comes with ARP guide detailing torque values, sequence, and lube type for proper setup
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Compact ARP box 4 x 3 x 1 inches
- Weight: 0.1 lbs
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