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Old 02-21-2007, 05:19 PM
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David Kirkham David Kirkham is offline
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Join Date: Mar 2001
Location: Provo, Ut
Cobra Make, Engine: Kirkham, 427
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xlr8or,

Billet valve covers would be VERY expensive. The billets would be too much. I have thought about sheet metal valve covers, however, to save weight. I have also thought about carbon fiber ones--they are extremely light.

Commander,

I agree; I can't wait to get it on the dyno. Theory is great. Data is much better. I am sure we will learn lots of things on the dyno we never thought about.

As for the bottom end design, it will not work on a Shelby, Genesis, or Pond block. Those blocks have skirts on them and so they will not accept a girdle without putting those blocks on a mill to take the skirts off. Our block has all of the main caps milled out of one piece of solid aluminum. The girdle is then bolted to the block with 4 bolts per main on the interior main webs. The girdle is doweled into place with 10 dowels so the girdle is positively located on each main. It is a very common design for modern engines (and F1) today.

David
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David Kirkham, President Kirkham Motorsports
Manufacturer Aluminum Body Kit Cars and supplier to Shelby* for their CSX4000, CSX7000, and CSX8000 289 and 427 Cobra
*Kirkham Motorsports is not affiliated with Ford or Carroll Shelby or any of their trademarks.
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