SKU: 641-1750 | UPC: 672036017026
ARP 5/16-18 x 1.750 12pt Black Oxide Bolts for Chevy Small Block Ford 302 GM LS Mopar Hemi (5/pkg)
ARP 641-1750 5/16-18 x 1.750 12pt black oxide bolts deliver 180,000 PSI tensile strength in packs of 5 for connecting rods mains cylinder heads and chassis in high performance builds. These forged 8740 chrome moly fasteners fit Chevy small block Ford 302 GM LS series and Mopar Hemi engines plus universal motorsport applications with precise 1.750 inch under head length and 1.000 inch thread length. Black oxide finish resists corrosion while 12 point heads ensure secure torque in extreme racing conditions.
Key Features
- 8740 Chrome Moly Alloy: Forged construction yields 180,000 PSI tensile strength for fatigue resistance in high stress engine and chassis use.
- 12-Point Head: Fits 3/8 inch socket for positive grip and no cam out during high torque assembly.
- Black Oxide Coating: Shields against rust and delivers clean professional look in engine bays.
- Exact Sizing: 5/16-18 thread pitch 1.750 inch UHL 1.000 inch thread length for drop in fit across applications.
- Kit Contents: 5 bolts plus matching hardened washers for ready to install assembly.
Product Notes
- Suits engine internals suspension and exhaust in performance vehicles from drag racing to off road.
- Pair with ARP thread lube for correct torque and multiple reuse cycles.
- Packaged in sealed bag inside protective box for damage free arrival.
Installation Notes
- Professional installation recommended.
- Apply ARP Ultra-Torque lube to threads and under heads for accurate clamping force.
- Clean all threads and surfaces torque to 50-60 ft-lbs adjusted for lube using calibrated wrench.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1955-2002 | Chevrolet | Small Block V8 | Connecting Rods Main Caps |
| 1968-2001 | Ford | 302 5.0L | Mustang Windsor Rod Bolts |
| 1997-2023 | GM / Chevrolet | LS Series V8 | Main Studs Heads |
| 1966-1972 | Dodge / Plymouth / Chrysler | Hemi V8 | Elephant Motor Rods |
| Universal | Universal | Chassis Exhaust Suspension | Control Arms Manifolds |
Why Choose ARP?
- High performance fasteners leader since 1968 with proven racing wins worldwide.
- Advanced metallurgy and manufacturing for strength in demanding motorsport conditions.
- Relied on by professional engine builders for exact fit and long term durability.
Frequently Asked Questions
- Q: Does this fit Chevy small block connecting rods?
A: Yes ARP 641-1750 bolts match 5/16-18 rods in 1955-2002 small block V8s for mains and rods. - Q: What material and finish are used?
A: Forged 8740 chrome moly steel with 180,000 PSI strength and black oxide for corrosion protection. - Q: What warranty applies and are they reusable?
A: Lifetime warranty against breakage when torqued properly reusable with ARP lube and thread inspection.
Shipping & Handling
- Method: Ground shipping for secure delivery.
- Availability: In stock – ships same or next business day
- Packaging: Sealed bag in 6 x 4 x 1 inch protective box
- Weight: 0.25 lbs
