Re: Valve springs
All stock springs that I have ever measured are less than 40#. I recommend 40# on a stock-grind cam, for better cooling of the valve. Performance cams are another story, 60# on a mild grind and as much as 90# on a flathead race engine. For those higher than 60# I use Isky V8 springs and make a spacer as they are a shorter spring.
|