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SKU: 231-4701 | UPC: 672036034290
ARP GM 2.2L ECOTEC Head Stud Kit for 1995-2007 Chevy Cavalier Cobalt Sunfire
ARP 231-4701 head stud kit upgrades GM 2.2L Ecotec engines in Chevrolet Cavalier Cobalt and Pontiac Sunfire G5 models. These studs provide consistent clamp load to seal cylinder heads under high boost or RPM. Built for racers and daily drivers seeking dependable head fastening.
Key Features
- Genuine ARP Fasteners: Forged steel construction resists fatigue for repeated heat cycles
- Stud Design: Minimizes block thread damage and ensures even torque distribution
- Rolled Threads: Increases thread strength by 30% over cut threads for secure hold
- Matched Hardware: Includes washers and instructions for bolt-on fit without custom machining
- Multi-Use Rating: Handles street NA track turbo or supercharged setups to 800hp
Product Notes
- Verify engine code L61 or LE5 before purchase for exact match
- Store in dry area to prevent corrosion on chrome moly finish
- Packaged to prevent thread damage during transit
Installation Notes
- Professional installation recommended.
- Clean blind holes with ARP thread chaser and apply ARP Ultra-Torque lubricant
- Torque to ARP specs in 3 stages 60/75/100 ft-lbs following sequence diagram
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1995-2005 | Chevrolet | Cavalier | Base |
| 1995-2005 | Chevrolet | Cavalier | LS |
| 1997-1999 | Chevrolet | Cavalier | RS |
| 2005 | Chevrolet | Cobalt | Base |
| 2005-2007 | Chevrolet | Cobalt | LS |
| 2005-2007 | Chevrolet | Cobalt | LT |
| 2006-2007 | Chevrolet | Cobalt | LTZ |
| 2007 | Pontiac | G5 | Base |
| 2005 | Pontiac | Sunfire | Base |
| 1995-2004 | Pontiac | Sunfire | SE |
Why Choose ARP?
- Proven in NHRA IHRA and endurance racing for over 50 years
- Heat-treated 8740 chrome moly steel exceeds OEM strength ratings
- CNC-machined for exact fit and repeatable accuracy
Frequently Asked Questions
-
Q: Does this kit fit 2.2L Ecotec in 2002-2005 Cavalier?
A: Yes fits L61 Ecotec in 1995-2005 Cavalier Base LS RS and 2002+ models with double overhead cams -
Q: What material are the studs made from?
A: 8740 chrome moly steel with rolled threads black oxide finish for corrosion resistance -
Q: What torque specs apply and is re-torque needed?
A: Follow ARP instructions 100 ft-lbs final re-torque after 500 miles or first heat cycle
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: ARP branded box 12 x 8 x 2 inches
- Weight: 1.95 lbs
Read More
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ARP (Automotive Racing Products) is the world’s premier manufacturer of high-strength engine and driveline fasteners—head studs and bolts, main studs, rod bolts, and more—engineered and manufactured in-house from start to finish for race-proven reliability. With vertically integrated processes that include cold heading, machining, heat-treating, thread rolling after heat treat, and rigorous QA, ARP maintains aerospace-level certifications (ISO 9001 and AS9100) and validates every part for repeatable clamp load and fatigue resistance. Signature alloys such as 8740 chromoly, ARP2000, L19, and Custom Age 625+ deliver ultimate tensile strengths up to the super-alloy range, while ARP Ultra-Torque fastener assembly lubricant helps achieve consistent pre-load during installation. From street performance builds to professional motorsport programs, ARP fasteners provide precise fitment, superior metallurgy, and the durability needed to keep engines together at elevated cylinder pressures and...
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