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SKU: 615-1250 | UPC: 672036037659
ARP 3/8-16 X 1.250 12pt 7/16 Wrenching SS Bolts - Universal Performance Engine Fit
ARP 615-1250 stainless steel bolts feature 3/8-16 threads and 1.250 inch length with 12-point heads for 7/16 inch wrenching. These fasteners provide consistent clamp load in high-stress areas like headers rocker arms oil pans and intake manifolds on small block Chevy big block Ford Windsor and other V8 engines. Built for street strip and track use they ensure long-term durability under heat and vibration.
Key Features
- Stainless Steel Construction: Type 304 stainless resists corrosion and galling in exhaust and wet environments for lasting performance
- 12-Point Head Design: Allows higher torque application without rounding plus better access in tight engine bays
- Precision-Rolled Threads: Ensures maximum thread engagement reduced galling and accurate repeatable torque values
- 7/16 Inch Wrenching Size: Matches common sockets for quick installation on headers valve covers and accessories
- ARP Engineering: Heat-treated and rated for high clamp loads in racing and street performance builds
Product Notes
- Thread size 3/8-16 UNC overall length 1.250 inches sold as each for custom kits or replacements
- Store in dry area apply ARP Ultra-Torque lubricant during install for optimal performance
- Lightweight design 0.05 lbs per bolt minimal impact on rotating assemblies
Installation Notes
- Professional installation recommended.
- Clean threads and holes use ARP Ultra-Torque lubricant as directed for proper preload
- Torque to ARP or factory specs in correct sequence re-check after heat cycles
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1955+ | Chevrolet | Small Block V8 | All |
| 1965+ | Chevrolet | Big Block V8 | All |
| 1962+ | Ford | 351 Windsor V8 | All |
| 1968+ | Ford | 302/351 Cleveland V8 | All |
| 1964+ | Chrysler | LA Series V8 | All |
| 1967+ | Pontiac | 400/455 V8 | All |
| Universal | Universal | Performance Headers/Rockers | Custom Builds |
Why Choose ARP?
- Decades of racing heritage with fasteners in NHRA Top Fuel and NASCAR engines
- Exclusive heat treatment and material specs outperform standard hardware
- Rolled threads and precise machining for fatigue resistance and joint integrity
Frequently Asked Questions
-
Q: What engines does the ARP 615-1250 fit for header or rocker applications?
A: Fits small block Chevy big block Ford Windsor Chrysler LA Pontiac V8s and custom setups needing 3/8-16 x 1.250 bolts for exhaust manifolds rocker shafts oil pans or intakes -
Q: What material are these ARP bolts made from?
A: Type 304 stainless steel per QQ-S-763 spec offers corrosion resistance and strength without magnetic properties ideal for exhaust use -
Q: What is the warranty and torque procedure?
A: Lifetime warranty against breakage when installed per ARP specs use Ultra-Torque lube and follow torque sequence re-torque after break-in if needed
Shipping & Handling
- Method: USPS First Class or UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective poly bag in 6 x 4 x 0.5 inch envelope
- Weight: 0.05 lbs
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