Hi all longstrokers, what valve springs did you use in your longstroke A7.
I notice on Draganfly's website they quote VS37 for longstroke A7s but only inners they dont list outer number. I'm waiting for a reply at present from them but wanted to hear any comments first.
I have a fair few longstroke heads with valves and springs and some inners look a bit shorter than a new set of later A7/A10 cast iron head inner springs I have and the thickness of the spring is thinner but not the width.
The outers look the same as A10. Some heads have inner springs that look the same as A10 but just a little shorter as if they are worn out.
My question is has anyone used later cast iron head A7/A10 valve springs in their longstroke? I think they can be used I dont think the inner would spring bind but I wonder why there is another number for inner.
Any thoughts?