SKU: 200-8574 | UPC: 672036006839
ARP 1/2-Inch Inner Diameter Insert Washers (10 Pack) Fits 1965-2002 Chevy Big Block, 1968-1976 Ford 429/460, 1966-1971 Mopar 426 Hemi
ARP 1/2-inch inner diameter insert washers position between rod bolts and bearing inserts on big block Chevrolet, Ford, and Mopar V8 engines to prevent galling and secure proper crush fit. These chromoly steel washers deliver reliable hardware for high-performance engine builds under extreme loads. Builders count on them for maximum engine durability in 1965-2002 Chevy Big Block 396-454, 1968-1976 Ford 429/460, and 1966-1971 Mopar 426 Hemi applications.
Key Features
- Exact Dimensions: 0.500 inch ID x 0.875 inch OD x 0.060 inch thick matches ARP rod bolt specs for flawless assembly
- Chromoly Steel Construction: Heat-treated 8740 alloy withstands high torque and vibration without deforming
- Galling Prevention: Shields bearing inserts from bolt contact damage during torque and operation
- Crush Fit Assurance: Maintains precise insert alignment for even clamping pressure and long-term reliability
- 10-Pack Quantity: Suits partial rebuilds or spares, with V8 engines typically needing 16-20 total
Product Notes
- Pair with ARP Pro Series 1/2-inch rod bolts in compatible connecting rods
- Verify rod bolt diameter before purchase
- Packaged to arrive flat and undamaged
Installation Notes
- Professional installation recommended.
- Place one washer per rod bolt between bolt shank and bearing insert shell
- Torque bolts to ARP kit instructions using ARP Ultra-Torque lubricant
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1965-2002 | Chevrolet | Big Block Engines | 396-454 |
| 1967-1982 | Chevrolet | Camaro | SS Big Block |
| 1965-1990 | Chevrolet | Corvette | Stingray Big Block |
| 1968-1976 | Ford | Mustang | Cobra Jet 429/460 |
| 1966-1979 | Ford | F-100/F-250/F-350 | 460 V8 |
| 1966-1971 | Dodge/Plymouth | Charger/Challenger | 426 Hemi |
Why Choose ARP?
- Trusted by NHRA Top Fuel and NASCAR teams for decades
- 8740 chromoly steel exceeds SAE Grade 8 strength ratings
- CNC machined tolerances hold under 0.001 inch for zero slop
Frequently Asked Questions
- Q: What engines use these 1/2-inch ID washers?
A: Designed for big block Chevy 396-454, Ford 429/460 385 series, Mopar 426 Hemi RB/BB engines with ARP 1/2-inch rod bolts. - Q: What material and finish do they have?
A: Heat-treated 8740 chromoly steel with black oxide finish for corrosion resistance and lubricity. - Q: What is the ARP warranty on these washers?
A: ARP provides a limited lifetime warranty against manufacturing defects when installed and used per instructions with ARP rod bolts.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: 1 x 3 x 5 inch box
- Weight: 0.05 lbs
Reviews
There are no reviews yet.