Katech/IWIS LSx Timing Chain

This IWIS timing chain for the GM Gen III/IV LSx engine is manufactured to a higher tensile strength for greater accuracy and longevity. These are the same chains used in the C5-R and C6-R racing engines built by Katech. Thunder Racing recommends replacing your factory chain with this upgraded version when doing camshaft swaps or other modifications where the chain is easily accessed, especially on higher mileage engines.