brisbane47
Well Known Member
gearhead409:
True, one of the reasons the 538 casting was changed involved putting more material in the casting in that area. The valve spring was a big problem in the NASCAR program that I was involved in. The endurance factor was not there...In the modern era we have such a large choice of springs, valve lengths and so on it makes you wonder how we ever got them to stay together for 500 mi. That problem carried over into the MK program as well. I am positive that collectively we can get Dan back on track. TS
True, one of the reasons the 538 casting was changed involved putting more material in the casting in that area. The valve spring was a big problem in the NASCAR program that I was involved in. The endurance factor was not there...In the modern era we have such a large choice of springs, valve lengths and so on it makes you wonder how we ever got them to stay together for 500 mi. That problem carried over into the MK program as well. I am positive that collectively we can get Dan back on track. TS