Re: Galena National

Posted by JWL On 2011/7/19 9:53:27

Gerd, may I take a swing at this ball? I believe the valve arrangement is to have no two exhaust valves next to each other. Possibly, the thinking was that having two exhaust valves closely situated would result to too much heat in a small area. Two intake valves next to each other would not cause excessive heating of the area. Engine metallurgy at that time was developing to cope with increasing power demands and hence more heat generation. Let's see what the experts say about this.

(o{I}o)

Edit: Cylinders 3 and 4 do have adjacent exhaust valves, but they are in different block castings.

Edit, edit: Plus the same casting could be used for both cylinder blocks.