Product Description
Michigan Motorsports Single-Bolt 58X LS Timing Set with C5-R Chain
Single-Bolt Cam Gear Replaces GM #12591689 | 58-Tooth Reluctor Applications | Crank Sprocket & Katech C5-R Timing Chain
Upgrade the timing system in your compatible Gen III or Gen IV LS engine with the Michigan Motorsports Single-Bolt 58X LS Timing Set. This package combines a single-bolt cam gear replacing GM #12591689, a crank sprocket, and a Katech KAT-7636 C5-R timing chain for engines using a 58-tooth reluctor wheel. The C5-R chain is the same design used by Katech in C5-R and C6-R racing engines, making this a strong timing-set choice for camshaft upgrades, higher-mileage engine refreshes, LS swaps, and performance builds where timing accuracy and long-term durability matter.
Key Features & Benefits
- Complete Single-Bolt 58X LS Timing Set: Michigan Motorsports combines the core timing components needed for compatible LS engines using a single-bolt camshaft setup and 58-tooth reluctor wheel. This gives engine builders a matched timing-system package for camshaft swaps, timing service, engine rebuilds, and performance LS projects.
- Single-Bolt Cam Gear Replaces GM #12591689: The included single-bolt cam gear is designed for compatible LS timing configurations requiring a replacement for GM #12591689. It is intended for engines using the 58-tooth reluctor wheel arrangement, helping builders select the correct timing hardware for later-generation LS applications.
- Katech C5-R Racing-Derived Timing Chain: The included Katech KAT-7636 timing chain, formerly HME-G68V-2, is manufactured with higher tensile strength for improved timing accuracy and longevity. This is the same chain used in Katech-built C5-R and C6-R racing engines, giving performance-minded LS builders a proven upgrade over a standard replacement chain.
- Smart Upgrade During Camshaft Installation: Timing components are already accessible during a camshaft swap, making this an ideal time to replace an older factory chain and related timing hardware. It is especially useful for higher-mileage engines where the original timing components have seen extended service before the performance upgrade.
- Built for Performance LS Engine Combinations: This Michigan Motorsports timing set is a practical choice for naturally aspirated, boosted, swap, street-performance, and race-oriented Gen III and Gen IV LS builds. The upgraded chain design supports builders looking for a durable timing-system foundation when making internal engine changes.
Kit Includes
- Single-bolt cam sprocket replacing GM #12591689
- 58-tooth reluctor wheel
- Crank sprocket
- Katech KAT-7636 C5-R timing chain
Specs
- Brand: Michigan Motorsports
- Product Type: LS timing set
- Cam Gear Configuration: Single-bolt
- Cam Gear OE Reference No.: Replaces GM #12591689
- Reluctor Wheel Application: 58-tooth
- Timing Chain: Katech KAT-7636, formerly HME-G68V-2
- Timing Chain Design: C5-R and C6-R racing-engine proven design
- Engine Family: Compatible Gen III and Gen IV LSx engines
Notes
- 58X Single-Bolt Configuration: This timing set is intended for engines using a 58-tooth reluctor wheel and single-bolt camshaft timing configuration.
Key Fitments
- Fitment guide for these and more (Gasoline V8 models only):
- CADILLAC CTS 2007-2015
- CHEVROLET AVALANCHE 2007-2013
- CHEVROLET CAMARO 2010-2015
- CHEVROLET CAPRICE 2011-2017
- CHEVROLET COLORADO 2009-2012
- CHEVROLET CORVETTE 2007-2013
- CHEVROLET EXPRESS 1500 2008-2013
- CHEVROLET EXPRESS 2500 2008-2013
- CHEVROLET EXPRESS 3500 2008-2013
- CHEVROLET SILVERADO 1500 2007-2013
- CHEVROLET SS 2014-2017
- CHEVROLET SUBURBAN 1500 2007-2013
- CHEVROLET TAHOE 2007-2013
- CHEVROLET TRAILBLAZER 2007-2009
- GMC CANYON 2009
- GMC ENVOY 2007-2009
- GMC SAVANA 2008-2013
- GMC SIERRA 1500 2007-2013
- GMC YUKON 2007-2013
- GMC YUKON XL 1500 2007-2013
- HUMMER H3 2008-2009
- HUMMER H3T 2009
- PONTIAC G8 2008-2009
- SAAB 9-7X 2007-2009
