SPI Xu-09537Es Performance Exhaust Valve Spring for High-RPM Use

$27.24

In stock

Quantity
SKU: 128671 Category: Brand:

Description

  • Forged one-piece construction to help with weight reduction & improved flow
  • Performance valves receive a swirl polish, smooth stem treatment, and are made of 21-2n/suh35ht stainless steel
  • Springs are made of swosc-v material (oil-tempered steel wire)
  • Some springs feature a progressive style design with more coils on one end of the spring
  • Progressive springs are heavier on one end and should always be installed towards the bottom
  • Non-progressive springs are paint marked and should be installed towards the top

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