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Old Aug 20, 2008 | 06:16 AM
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From: Ventura, CA
Cam swap question
If I'm throwing in a new, but mild cam, do I need to replace the valve springs. I'm looking at a Summit kit, part# sum-k5200, which come with lifters and I'll replace the timing set also. I know I probably should, but do I really need to replace the springs?
 
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Old Aug 23, 2008 | 08:46 PM
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From: KFalls
You dont have to, but if the springs are old you should test them. Also if you want to run higher RPMs you need stiffer springs.
 
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Old Aug 24, 2008 | 03:46 PM
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Springs are cheep. You should use the recomended spring & get rid of the exhaust rotators if your heads have them. I would check push rod length also. Aftermarket cams can have a different base circle.
 
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