Fox Spring Guide 3.500 OD x 3.500 Tlg Dia. 1.834 Bore Nylon Dual

When you're rebuilding the top end of your engine, especially if you're working with performance valve springs, you need to make sure everything is aligned correctly. This spring guide from Fox is designed to help you do just that. It's made from durable nylon, which is a good choice for this application because it's lightweight and won't scratch or damage your valve spring or other components.

This particular guide has a 3.500 inch outside diameter and a 3.500 inch length, with a 1.834 inch bore. The dual design means it's built to handle the stresses of the job. It fits right into place, making the installation process smoother. Having the right guide ensures your valve springs sit true, which is key for proper engine operation and longevity.