[MarkGbe]

I tore down my engine and found that one of the studs is not like the others. It's shorter. I went to find a replacement but the diagram shows that there are two different studs, #3 and #4. ... can anyone decipher this? Does it go 4,3,4,3,4,3 on each side?

 

[MarkGbe]

any ideas? I am finding it difficult to find these parts. i did find one stud available (#4), but i need #3.

Anyone know i i could just use threaded rod for these? i goggled and found that some folks have done it before.