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1473 Valve Springs - Pro 850 Spring (set of 8)
1473 Valve Springs - Pro 850 Spring (set of 8)


 
List Price: $239.95
Your Price: $209.95
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Product Code: 1473
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Description
 
This is a dual valve spring engineered for use on drag race engines. The Pro-850 valve spring has a very high frequency range. This high frequency allows for increased valve control at high rpm's. The smaller 1.440 diameter decreases the weight of the spring. Decreased weight allows for less spring tension when compared to stronger yet heavier roller springs.

Features
  • Installed Pressure @ 1.800 installed height - 300 lbs.
  • Open Pressure @ .800" Lift - 815 lbs.
  • Coil Bind @ .930"
  • O.D of outer valve spring - 1.440"
  • I.D of inner valve spring - .760"
  • Top Quality Heat Treated Kobe Wire
  • Stress Relieved
  • Heat Set
  • Micro Shot-peen
  • Nitrided and Polished Surface

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