1993 Chevy Silverado minimum valve spring

Tiny
1STREET1
  • MEMBER
  • 1993 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
Dear sirs
how do I find the minimum valve spring pressure thats acceptable
with the recommended spring tension of 200 pounds
please help im stuck thanks jim
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Friday, December 21st, 2007 AT 9:13 PM

3 Replies

Tiny
PEAR69
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This question has many answers. First I need to know what you are doing to the engine. Are you rebuilding it? Are you rebuilding the heads? Are these stock valve springs? Is it a stock cam?
Normaly, if there is any question about the strength or integrity of a valve spring, you should replace the whole set.
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Friday, December 21st, 2007 AT 9:31 PM
Tiny
1STREET1
  • MEMBER
If a manufacturers recomended spring tension is 200 pounds how do I determan what the minimum pressure would be acceptable for the spring
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Friday, December 21st, 2007 AT 9:38 PM
Tiny
PEAR69
  • MEMBER
Is it a steel head or aluminum head? Are the valve seats stock? Are the valves steel or titanium? What is the compression ratio? Are you using stock rocker arms? What is the valve duration of the cam?
What I'm trying to get at is this, there is not an exact answer to your question until you tell me what you are doing to the engine. In order to find the minimum acceptable pressure for the spring you must consider what you are asking the spring to do; and are the parts that support the spring--like the retainer -- the keeper -- the head material etc, capable to do the job. There is no reliable answer to your question until all the questions above are answered.
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Friday, December 21st, 2007 AT 10:27 PM

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