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post #1 of 3 (permalink) Old 07-27-06, 02:11 PM Thread Starter
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Max lift for 351C 4V heads?

Do any of you happen to know the max lift for a 1970 closed chamber Iron head to prevent coil binding?
I know this depends on the spring, but I'd like a general figure to work off of without having to machine the head or use longer valves.

Thanks in advance.
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post #2 of 3 (permalink) Old 07-31-06, 06:41 AM
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Re: Max lift for 351C 4V heads?

Usually with standard type springs you wont get much over 500 tho , the standard spring material is thicker than performance ones .
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post #3 of 3 (permalink) Old 07-31-06, 07:44 AM Thread Starter
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Re: Max lift for 351C 4V heads?

Perfect, thanks for the help.
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