Originally Posted by hcompton
ok this is a question i get a lot but never have an answer cause i rarely use stock castings.
Can't vortech heads use beehive springs? I always see the cam mfg. suggest two types of springs and they always have there heavy dual springs listed first. But I have used beehive type springs and they work good for many applications.
Sorry not trying to hijack your post. I got a feeling beehives are your answer. It seems like they probably sell a set that are direct fit. but nto sure figured someone on here already has it figured out.
Beehive valve springs or dual standard valve springs will not fit a Vortec heads without machine work. The Vortec valve springs are 1.241" OD and the Vortec heads have spring pockets that are 1.248" OD with a inside spring locator boss that is .750" OD - .775" OD. Beehive valve springs are 1.310"" OD x .885" and require a pocket that is machined to 1.350" OD x .775" ID with the seat cutters that are available. Dual valve springs are at least 1.300" OD in order to accommodate the inner spring.
Most beehive valve spring failures can be traced back to the bottom coil because they were fitted on Vortec heads with re-sizing the spring pockets.