These decorative nickel plated all metal spike caps give your engine real ATTITUDE! They just tap on over the stock ¼ inch allen head bolts on EVO and TWIN CAM push rod covers. The spike head itself is ¾ of an inch at its base, and the spike and pedestal combined stand 1 – ¼ inches tall for a very impressive and unique look.

• The kit contains 8 spikes. 4 of the spikes are designed for easy installation on the rear four bolts.