Reply to "Valve spring selection"

4vandproudMember

being that the heads are not virgin, you have to find out if the spring seats have been altered from factory before doing anything

also, assuming they've had a valve job and the installed heights are not necessarily 1.82" or even within factory spec, you should measure each (all 16) installed heights from spring seat to retainer w/o shims for a baseline

from this baseline you can figure things out on paper before ordering parts that aren't optimized to what you're really working with. + and - retainers can be used to gain or tighten installed height, even shims can be calculated on paper before ordering parts

1/5/182:09 PM

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