99+ Navigator C Head 4V Straight Bronze Valve Guides

Sold as a set of 32 

These Bronze Valve Guides for the 4V Cylinder Heads are the absolute best available on the market. These guides are machined from the highest quality USA Made Manganese Bronze Alloy available and are made exactly to our specifications. Tapered Nose design for better flow. 

The Navigator Cylinder Heads use a very different Valve Guide than any other of the 4V Heads. The stock guides are shorter than they should be and that can lead to unstable valves at higher RPM. Our 4V Navigator guides are 1/2" Longer than stock to support the Valve Stem as much as possible without hurting flow. Exhaust Guides will be the same as all the other 4 Valve Heads. 

All of our valve guides are slightly undersized on the ID and will need to be honed to size or finish reamed. This is due to variances in Valve Stem diameters.