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About how long do valve springs last?

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Old 06-05-2005, 09:00 PM
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Default About how long do valve springs last?

I havent ever looked into this much, so Im not going to act like I know. Do you ever have to replace them or about how often do you have to if ever? I have MTI Heads and they have the dual valve springs.

Brian
Old 06-05-2005, 09:06 PM
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Originally Posted by 00RedWs6
I havent ever looked into this much, so Im not going to act like I know. Do you ever have to replace them or about how often do you have to if ever? I have MTI Heads and they have the dual valve springs.

Brian

Many factors,how large is the cam/ramp rate/total lift, how hard to you drive it street driven miles vs track driven trips, these factors have to be considered.
Old 06-05-2005, 09:26 PM
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on a stock cam, they would last the life of the engine.
on a 224 cam with a 581 lift expect about every 20k.
above cam was just an example.
Old 06-06-2005, 02:13 AM
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Its an MTI T1 (221/221 .558/.558) in my car and the springs have lasted me 40k miles shifting at 6200. I need to get em tested soon.
Old 06-06-2005, 03:34 AM
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who tests them?
Old 06-06-2005, 07:54 AM
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Originally Posted by 00RedWs6
who tests them?
You can buy a spring tester from vendors such as Summit. Any machine shop you have locally should be able to test them for you at a minimal cost.



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