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Patriot Performance's Xtreme spring evolved from our Orginal Patriot Gold. The Xtreme spring is for power adder applications, heads uses large valves, and for aggressive cam profiles.
*Sold per spring.
**16 springs required per pair of heads.
Technical Specs:
Install Height: 1.800"
Max. Valve Spring Lift: 0.660"
Spring Pressure Closed: 155 lbs. @ 1.800"
Spring Pressure Open: 410 lbs. @ 1.140"
Coil Bind: 1.090"
Price: $9.50
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