SKU: 434-3103 | UPC: 672036043896
ARP SB Chevy 4-Bolt SS 12pt Motor Mount Bolt Kit – Fits 1997+ Chevrolet LS Engines
Secure your engine mount brackets to the block with this ARP 434-3103 bolt kit designed for Small Block Chevy LS engines featuring 4-bolt patterns. This 8-piece stainless steel set replaces stock hardware on Gen III and Gen IV LS engines found in Camaros, Corvettes, trucks and more. Deliver consistent clamping force to reduce vibration and maintain alignment under high loads.
Key Features
- Stainless Steel Construction: Resists corrosion from moisture, road salt and engine oils for long-term reliability in all conditions
- 12-Point Heads: Allow precise torquing with common sockets and wrenches while providing superior grip to prevent cam-out during installation
- Precision Rolled Threads: Ensure smooth engagement with LS block threads to avoid galling or stripping for repeatable installs
- 8-Piece Complete Kit: Includes all bolts needed for both left and right side mount brackets on 4-bolt LS engines
- High Clamp Load Rating: Maintains tension at elevated temperatures and vibrations common in performance and racing applications
Product Notes
- Confirm your LS engine block has 4-bolt motor mount bosses before purchase
- Torque bolts to ARP specifications using a calibrated torque wrench
- Store in a dry area to preserve stainless finish
Installation Notes
- Professional installation recommended.
- Apply anti-seize compound to threads for optimal performance
- Compatible with OEM and aftermarket motor mount brackets
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2004 | Chevrolet | Corvette | Base, Z06 |
| 1998-2002 | Chevrolet | Camaro | Z28, SS |
| 1999-2007 | Chevrolet | Silverado 1500 | 4.8L, 5.3L, 6.0L |
| 1999-2006 | Chevrolet | Silverado 2500 | 6.0L |
| 2004-2006 | Chevrolet | Corvette | Z06 |
| 2007-2013 | Chevrolet | Corvette | Base, Z06, ZR1 |
| 2010-2015 | Chevrolet | Camaro | SS |
| 1999-2019 | Chevrolet | Silverado 1500 | LS, LT, 5.3L, 6.0L, 6.2L |
Why Choose ARP?
- Proven in NHRA, NASCAR and drag racing for decades
- Manufactured from premium aerospace-grade materials
- Every bolt undergoes rigorous tensile and fatigue testing
Frequently Asked Questions
- Q: Will this kit fit Gen III LS1 engines in 1998 Camaros?
A: Yes, it fits all Gen III and Gen IV LS engines with 4-bolt motor mount bosses including LS1, LS6, LS2, LQ4, LQ9 and more - Q: What material are these bolts made from?
A: ARP Stainless Steel, series 300 for excellent strength, ductility and corrosion resistance - Q: What is the torque spec and warranty?
A: Torque to 45 ft-lbs dry or follow ARP instructions. Backed by ARP limited warranty against manufacturing defects
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Protective pouch inside 6 x 4 x 1 inch box
- Weight: 0.31 lbs
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