90# Valve Springs - Set of 12 - 3800
90# Valve Springs - Set of 12 - 3800 is backordered and will ship as soon as it is back in stock.
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90# Valve Springs - Set of 12 - 3800
90# Valve Springs - Set of 12 - 3800 is backordered and will ship as soon as it is back in stock.
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Description
Description
Safely increasing cam lift or maximum engine RPM will require new valve springs. For example on the 3800 we use LS1 "behive" valve springs which means that when running new springs you will also need our LS1 retainers.
Why install valve springs?
When boost is increased, that boost is pushing on the back side of the intake valves, therefore your actual valve spring pressure is reduced. So when you add valve springs it allows you to rev higher and increase your boost without losing any performance to valve float. If you are boosted and want to shift above 6000rpms, then we would recommend the Comp Cams 136# or Crow 130# valve springs instead.
Some users have reported that in naturally aspirated applications the LS6 springs have excessive noise and cause false KR readings at certain rpm points. However we have not experienced this.
1.80 recommended install height.
These are all packaged in sets of 12.
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