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🇨🇦 Proudly Canadian! All orders ship from Canada. No Tariffs. No hidden fees. No surprises.

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Manley NexTek Series 1.580 OD .832 ID .730 Lift Oval Track and Endurance Valve Springs - 221443-16

SKU: SKU: MAN221443-16

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From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.

Features

  • No degradation of spring pressure in the later stages of a race
  • Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities
  • Tested by leading engine builders and are confirmed to be the best performing valve springs on the market today

Specs

  • Manley Valve Spring, SPRING-1.580 DOUBLE
  • Product Market: Domestic
  • Average Gram Weight: 150
  • Product Type: Engine Valve Spring
  • Valve Spring Outer Diameter: 1.580
  • Valve Spring Inner Diameter: 0.832
  • Valve Spring Quantity: 16
  • Valve Spring Series: NexTek? Series
  • Valve Spring Material: Chrome Silicon
  • Valve Spring Type: Double
  • Valve Spring Coil Bind Height: 1.170
  • Valve Spring Rate: 535
  • Valve Lift - Maximum: 0.730
  • Installed Pressure and Height: 235 @ 1.950
  • Open Pressure and Height: 610 @ 1.250
  • Industry: Automotive
  • Out of Stock Message: Call for Availability
  • Title: Manley Valve Spring, SPRING-1.580 DOUBLE
  • Prop 65 Yes/No: Yes
  • Prop 65 (C, R or CR): CR
  • Prop 65 - Short Label: Prop 65 Warning Label.JPG
  • Engine Type: ICE

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