Does anyone know if threads in an M20 block are countersunk?

[noid]

Looking to order a Time-sert headbolt kit, it seems that the 1090 kit is set up for 6mm counter sink. Does this seem right for an M20? Basically do the threads start 6mm down into each block hole?

Currently not near my E30 or I would check myself.

[SmokeE30]

The threads in m20s don't start untill about 5-6mm down so I think you should be good but I know you can buy an m20 block for cheaper than a timesert kit

[noid]

Block is original to the car, would love to keep it there. The kit is expensive but I plan to resell it after I am done with it, so I shouldn't be to deep into it when all is said and done.