Author Topic: #4 330 heads valve size  (Read 29 times)

79WS6TA

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#4 330 heads valve size
« on: September 07, 2019, 04:52:15 PM »
How big of valves can be fitted to the #4 heads for use on a 403?
Is there a recommended size that has proven to work well?
Thanks.

olds403

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Re: #4 330 heads valve size
« Reply #1 on: September 11, 2019, 10:32:54 AM »
That isn’t the only challenge. I use what is needed to hit flow numbers and the cam needs.  2.072 will fit.    Valve length, springs, lift of cam, type of springs roller vs hydraulic, guide seals (pc) have to be cut down.  Those all have to be decided. Heads this old will need everything. I use champion racing heads in Florida, palm coast. 

Re: #4 330 heads valve size
« Reply #1 on: September 11, 2019, 10:32:54 AM »
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