For LS engines upgrading cams or switching to 3-bolt cam gears, choosing the right conversion kit or gear is essential for durability and timing accuracy. This article reviews five top options, focusing on compatibility with 58X reluctor systems and 3-bolt cam designs. Each pick is evaluated on fitment, build quality, and performance notes to help you decide which kit best suits your LS build.
Product Summary
- Michigan Motorsports 1-Bolt to 3-Bolt Cam Gear Conversion Kit with Timing Chain
- Michigan Motorsports 1-Bolt to 3-Bolt LS Cam Gear Conversion Kit (58X Reluctor)
- Michigan Motorsports Four Pole 58X 3-Bolt Cam Gear Sprocket
- Lizixny 3 Bolt 4x Timing Chain Cam Gear For Chevy LS3 LS2
- AULINK 12586481 Four Pole 58X 3-Bolt Engine Timing Camshaft Sprocket Gear
Michigan Motorsports 1-Bolt to 3-Bolt Cam Gear Conversion Kit with Timing Chain
Designed to convert 1-bolt LS camshaft setups to a 3-bolt timing set, this kit expands cam upgrade options while boosting valvetrain durability. It includes a precision-machined 3-bolt cam gear and a robust timing chain for OEM-like fit and stability in performance builds. Compatible with a broad range of Gen III & Gen IV LS engines, including LS1, LS2, LS3, LS6, L99, LS4, LS9, LSA, and LQ4 platforms, making it suitable for cam swaps and high-performance builds.
Michigan Motorsports 1-Bolt to 3-Bolt LS Cam Gear Conversion Kit – 58X Reluctor
This kit enables installation of a 3-bolt cam in engines originally equipped with a 1-bolt setup on 58X reluctor systems. It includes a hardened 3-bolt cam gear and ARP cam bolts for high-strength, consistent torque retention in high-performance LS builds. Ideal for cam upgrades on 58X LS engines like LS2 and LS3 variants, enhancing timing reliability during aggressive race or street performance tuning.
Michigan Motorsports Four Pole 58X 3-Bolt Cam Gear Sprocket
Specially designed for LS engines with 58X crank reluctors, this four-pole 3-bolt cam sprocket delivers precise timing and synchronization for Gen IV LS engines. It’s a direct replacement for GM part 12586481, ensuring factory-like precision and reliable performance in LS2, LS3, and compatible powerplants. The four-pole design enhances timing signal integrity, supporting modern ECU communications in performance builds.
Lizixny 3 Bolt 4x Timing Chain Cam Gear For Chevy LS3 LS2
These 3-bolt, 4x timing cam gears are positioned as universal replacements for LS engines (LS2, LS3, LY6, L99, L92, and related platforms). Built from durable materials and designed for direct swap with minimal oil pump clearance concerns, they provide a straightforward upgrade path for LS cam swaps and timing chain assemblies. Users should verify compatibility with original GM part 12586481 and 4x reluctor configurations before installation.
AULINK 12586481 Four Pole 58X 3-Bolt Engine Timing Gear
OEM-style timing gear designed for 58X crank reluctor LS engines, compatible with 4.8L, 5.3L, 5.7L, and 6.0L V8 platforms. This four-pole cam gear replacement offers strict quality control, precision machining, and heat-treated wear resistance to maintain timing accuracy under performance conditions. Replaces several GM part numbers and supports a wide range of factory and aftermarket LS builds.
Buying Guide: Key Considerations For 3-Bolt LS Cam Gear Upgrades
- Reluctor compatibility: Confirm your engine uses 58X reluctor or another sensor arrangement. Many 3-bolt upgrades require 58X compatibility for proper ECU communication.
- Gear configuration: Decide between 3-bolt cam gears and 4-pole designs. Four-pole gears can improve timing signal stability on Gen IV engines, while 3-bolt gears are common for various LS cam swaps.
- Strength and materials: Look for hardened cam gears and precision-machined sprockets, paired with robust timing chains or chains that match OEM tolerances to avoid slippage or timing loss.
- Bolts and hardware: Kits that include ARP bolts or equivalent high-strength fasteners reduce the risk of bolt loosening under high-RPM operation or aggressive cam profiles.
- OEM replacements vs aftermarket: OEM-style gears offer direct fit and proven reliability, while aftermarket options may provide additional strength or compatibility with non-stock cam profiles.
- Application range: Ensure the kit supports your engine family (LS1, LS2, LS3, LS6, L99, LS4, LS9, LSA, LQ4, LY6, etc.) and your exact displacement (4.8L, 5.3L, 5.7L, 6.0L).
- Installation considerations: Some kits require specific mounting hardware or timing chain selections. Review included components and any additional parts needed for complete installation.
- Warranty and support: Check warranty terms and seller support in case of fitment questions or alignment issues during cam swaps.
- OEM part-number alignment: When replacing GM parts, confirm compatibility with GM 12586481 and related part numbers to avoid mis-match.
Comparative Snapshot
All selected products focus on enabling 3-bolt cam gear upgrades for LS engines, with emphasis on 58X reluctor compatibility and robust timing chain integration. For those prioritizing OEM-like fit and multi-engine compatibility, several Michigan Motorsports options stand out. For a broader range of models and direct OEM replacements, AULINK and Cloyes provide recognized alternatives. Always verify engine year, reluctor type, and cam degree requirements before purchasing.
Additional Notes on Compatibility and Installation
Engine builders should verify whether their LS configuration uses 1-bolt or 3-bolt cam gear setups, as well as the reluctor type (58X vs 4x). Some kits are tailored to specific GM part numbers and engine families, while others are more universal. Proper torque, gasket sealing, and alignment are essential to prevent performance losses or oil leaks after installation. If you’re upgrading to a 3-bolt cam in a 58X engine, ensure the cam gear and chain are matched to minimize timing deviation at high RPM.