Supertech Nissan KA24 Manganese Brnz Intake/ Exhaust Guide 39.6mm x 6.98mm x 11.05 +0.02mm- Set of 8

This set includes eight Supertech manganese bronze valve guides, designed for Nissan KA24 engines. Each guide measures 39.6mm in length, with a 6.98mm inner diameter and an 11.05mm outer diameter. These guides are manufactured to be 0.02mm oversized on the outer diameter, ensuring a snug and accurate fit when installed into the cylinder head.

Manganese bronze is a strong material choice for valve guides because it offers good wear resistance and self-lubricating properties, which helps reduce friction between the valve stem and the guide. This can lead to improved valve train longevity and consistent performance. The precise sizing of these guides is important for proper valve sealing and operation.