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General Chat (Vincent Related)
Valve Spring Reference
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<blockquote data-quote="davidd" data-source="post: 92181" data-attributes="member: 1177"><p>The valve that I have in the photo for the mock up is a Vincent valve that I cut a groove right at the top of the stem to see how much more height I would need. The beehive spring is taller than the Vincent spring when installed. I need a valve that is slightly longer and has a taller shoulder by .080". I also have to step it down to 5/16" to fit the retainer.</p><p></p><p>I will use a Mopar small block valve for the next mock up. The hope was to use off the shelf performance parts for the mod, while restricting most of the changes to the valve, which needed to be custom made anyway to run the cam. As it turned out, the top valve guide will probably have to be made and it is possible that the valve cap itself may need to be modified for the new height of the valve.</p><p></p><p>[ATTACH=full]20352[/ATTACH]</p><p>I used the two above ending in 196 and 198.</p><p></p><p>Greg used Chevy big block valves and Toyota Corolla retainers and locks to make his racer valves.</p><p></p><p>I don't have the position of the top groove on the valve here with me. It is at the shop on my notes.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 92181, member: 1177"] The valve that I have in the photo for the mock up is a Vincent valve that I cut a groove right at the top of the stem to see how much more height I would need. The beehive spring is taller than the Vincent spring when installed. I need a valve that is slightly longer and has a taller shoulder by .080". I also have to step it down to 5/16" to fit the retainer. I will use a Mopar small block valve for the next mock up. The hope was to use off the shelf performance parts for the mod, while restricting most of the changes to the valve, which needed to be custom made anyway to run the cam. As it turned out, the top valve guide will probably have to be made and it is possible that the valve cap itself may need to be modified for the new height of the valve. [ATTACH=full]20352[/ATTACH] I used the two above ending in 196 and 198. Greg used Chevy big block valves and Toyota Corolla retainers and locks to make his racer valves. I don't have the position of the top groove on the valve here with me. It is at the shop on my notes. David [/QUOTE]
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Valve Spring Reference
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