FORZA VALVES-VALVE GUIDES

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Valve Guides
In the photo on the left, the copper colored valve guide on the far left is the original guide used in the early 355s and is made of a copper alloy material. This is a soft material that causes the guide to wear quickly and fail prematurely. The guide in the center is made of iron and came standard in the head that Ferrari used in the later 355s and 360s and also when they had to replace heads with failed copper alloy guides. The iron guides seem to hold up better than the soft copper alloy material used. Notice, however, how it is straight with no flange. This could allow the guide to "walk" down into the heads and cause severe damage, especially if an engine were to overheat. On the far right is a PROVEN manganese- bronze guide used to replace the original flanged guide. We have been using these valve guides for over 10 years in our 308/328 engines with ZERO comebacks.

In the photo on the right are the guides we custom build to replace the non-flanged iron guides when necessary. Notice the small round "bump" we leave to insure the guide can not walk down into the head.

I PERSONALLY have been using this valve manufacturer over 10 years in MY OWN Ferrari engines & also for our clients modified high HP 308/328 engines for the last 7 years with ZERO comebacks. Note the reduced stem to allow more flow. Custom valves available for most Ferrari models including newer 355/360 model Ferrari's. Many STANDARD valve sizes are in stock for quick turn around times

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