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Specs for Sealed Power VS660:


<table class="moreinfotable" style="width: 500px;"><tbody><tr><td>Max Outside Diameter</td><td>1.225</td></tr><tr><td>Wire Diameter</td><td>0.17</td></tr><tr><td>Total Coils</td><td>6.5</td></tr><tr><td>Solid Height</td><td>1.105</td></tr><tr><td>Closed Height</td><td>1.64</td></tr><tr><td>Closed Pressure (Lbs)</td><td>60</td></tr><tr><td>Open Height</td><td>1.25</td></tr><tr><td>Open Pressure (Lbs)</td><td>166</td></tr></tbody></table><table border="0" cellspacing="0" cellpadding="0"><tbody><tr><td style="vertical-align: bottom;"></td><td></td></tr></tbody></table>
 

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From the shop manual...

Valve Spring Free Length: 2.09"
Spring Pressures:
71-79# @ 1.78"
Wear Limit 64# @ 1.78"
161-177# @ 1.39"
Wear Limit 145# @ 1.39"
Assembled Height = 1.75 - 1.78125"
 
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