Manley Race Roller Timing Chain Kit - Big Block Chevrolet - Short

This is the Manley Performance Race Roller Timing Chain Kit, specifically for Big Block Chevrolet engines. It's a well-built kit designed to give you precise control over your engine's timing, which is crucial for performance and smooth operation. If you're rebuilding the front end of your Big Block Chevy, getting the timing right is key, and this kit helps you achieve that accuracy.

Inside this kit, you'll find a fully machined steel crankshaft sprocket. What's neat about this sprocket is that it has three keyways, letting you adjust the timing by -4, 0, or +4 degrees. This adjustability is really helpful for fine-tuning your engine's performance. The camshaft sprocket is cast and comes with either a Torrington thrust bearing or a brass wear shim, depending on the specific setup. The roller chain itself is built with .250-inch diameter rollers, which are known for their durability and smooth operation compared to silent chains. For Chevrolet applications like yours, Manley includes either that brass wear shim or a captive Torrington bearing to ensure the camshaft sprocket stays properly seated and wears evenly.

This particular kit is noted as being .005 inches shorter than standard, which can be important for specific engine builds where clearance is tight. It's a solid option for anyone looking to ensure their timing components are reliable and accurate.