I am using using the heads. A long block is a block and heads, a short block is just the block no heads. From what I read, the spring number given is for the 6.4 cam. I need to know if the 6.4 cam that's non MDS will work in the 5.7 with the MDS deleted or if I have to use a cam that's for an MDS engine.
My bad, I misread about the LONG block. Yes, that cam will work. There is no difference in the blocks. Just the parts used or not used to make it MDS or Non MDS.
