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I was told that 901-16 valve springs would work with the stock retainers on my 302 casting 318 heads, they only cover up to half of the diameter of the spring is this ok? just wanting to double check before assembly



The most important part is how the fit against the ID of the spring? They want to almost have a zero play fit , if the float a large amount around inside the spring the retainers are TOO SMALL .