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SKU: 611-1500 | UPC: 672036015596
ARP 1/4in x 20 - 1.5 in UHL 12pt SS Bolt Kit (5/pkg) for 1955-2004 Chevrolet Small Block Engines
ARP 611-1500 provides stainless steel 12-point bolts in 1/4-20 x 1.5 inch under head length with a 5-pack kit for Chevrolet Small Block engine hardware. These bolts fasten valve covers oil pans and components on 262-400 cubic inch engines in Camaro Corvette Chevelle Nova trucks and more. Stainless steel construction resists rust from moisture fuels and heat while 12-point heads deliver secure torque and a clean engine appearance.
Key Features
- Stainless Steel Build: Resists corrosion from moisture fuels and heat for long-term engine reliability in harsh conditions
- 12-Point Head Design: Grips firmly with socket to prevent cam-out stripping and ensure precise installation every time
- 1/4-20 Thread Pitch: Matches OEM and aftermarket Small Block Chevy specifications for exact threading and secure hold
- 1.5 Inch UHL: Delivers correct protrusion and clamp load without bottoming out in blind holes on SBC blocks
- 5-Pack Kit: Provides exact quantity for partial replacements custom builds or maintenance saving time on ordering
Product Notes
- ARP recommends thread cleaner and lube for best results
- Clean mating surfaces before assembly to achieve full thread engagement
- Lightweight design at 0.25 lbs ships economically
Installation Notes
- Professional installation recommended.
- Torque to 12-18 ft-lbs depending on application use calibrated wrench
- Compatible with ARP washers and standard Small Block Chevy hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1967-2002 | Chevrolet | Camaro | Base SS Z28 |
| 1962-1982 | Chevrolet | Corvette | Base Stingray |
| 1964-1972 | Chevrolet | Chevelle | Base SS |
| 1962-1979 | Chevrolet | Nova | Base SS |
| 1960-1987 | Chevrolet | C10 Pickup | Base |
| 1955-1972 | Chevrolet | Bel Air | Base |
| 1959-1976 | Chevrolet | Impala | Base SS |
Why Choose ARP?
- Decades of leadership in performance fasteners trusted in NHRA NASCAR
- Manufactured to exacting tolerances for consistent clamp loads
- Made in USA with rigorous quality control
Frequently Asked Questions
-
Q: Does this fit Chevrolet Small Block Chevy 350 engines?
A: Yes ARP 611-1500 bolts match valve cover and oil pan holes on 262-400 cid SBC engines from 1955-2004 -
Q: What stainless steel grade is used?
A: High-strength 18-8 stainless steel rated 170 KSI tensile strength for demanding conditions -
Q: What is the warranty and install torque?
A: Limited lifetime warranty against failure when installed correctly torque to 12-18 ft-lbs with ARP Ultra-Torque lube
Shipping & Handling
- Method: UPS Ground USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Original ARP box 3 x 3 x 1 inches
- Weight: 0.25 lbs
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