I was retorking my headbolts on my 280ZXT and besides the two rows of seven bolts. I noticed inbetween those two rows were four allen bolt heads (same size as head bolts) in the oil catch valley of the head. What are those four bolts?
14,10,6,2,4,8,12
,,,,,, X, X,X,X
13, 9,5, 1,3,7,11
Above are the 14 Headbolts (I numbered in the order you tork them down) I marked with an X the four bolts I'm wondering what they are? Any Ideas?
Thanks
Len

 

I figured they were plugs of some sort. I'm so proud of myself for not putting my tork wrench on em for the full 65lbs!!!!!!!
Maybe I'm actually gaining some sort of wisdom in my old age!
Thanks for the reply.
Len