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valve spring question

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Old 09-05-2007, 07:19 PM
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5.0 lou
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Default valve spring question
do i need to upgradevalve springs for a b-303 on gt-40 heads?
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Old 09-05-2007, 07:36 PM
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Joel5.0
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Default RE: valve spring question
If GT40 heads are from an Explorer.....yes.
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Old 09-05-2007, 07:39 PM
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5.0 lou
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Default RE: valve spring question
ok
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Old 09-05-2007, 08:29 PM
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mjr46
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Default RE: valve spring question
you should always try and match the springs when changing to a different cam...
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Old 09-06-2007, 06:46 PM
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tinman
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Default RE: valve spring question
If it were me and I was going to all the work of putting in differant/new cam, I'd sure want to have a new set of springs and seals too........
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Old 09-06-2007, 06:52 PM
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my77stang
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Default RE: valve spring question
tech. you dont HAVE to replace them (.480 lift) but in all seriousness its highly recommended.
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Old 09-06-2007, 07:50 PM
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MadMan@TheWheel
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Default RE: valve spring question
If you anticipate .500+ (which I know that cam is not) but if you decide to go a little more juicy then it's a must. For .480 nah, but you are not far from it being a good idea.
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