any reason not to replace Hex bolts in timing chain cover with regular bolts?

[idosubaru]

H6 3.0 engine has 60ish hex bolts for the timing chain cover.  i am destroying almost all of them via chisel to get them loose.

 

unless there's some compelling reason not too i'm going to replace them with normal bolts like transmissions/oil pan bolts.

[Rooster2]

Nothing exotic about a timing chain cover. Yea, I would use normal bolts. Recommend applying anti seize to the threads, just in case you ever have to remove the bolts in the future. Anti seize can sure make life a lot easier. I even use it on my lug nuts for the road wheels.

[Bushwick]

You can replace them with traditional bolts, so long as you have clearance to extract with a socket or wrench. Anti-seize like stated above will help keep the bolts from freezing and help prevent future breaking or snapping. Just need a dab on the threads (don't over do it). 

[ivans imports]

When I do stuff like that is critical you check that bolts do not bottom out in thread bore as this can cause cracks inside engine

[Fairtax4me]

The only reason not to would be if there is limited clearance around the head of the bolt that prevents you from putting a socket on it.

 

That size bolt should typically have a 10mm head. See if you can order a flange head bolt with an 8mm head for any bolts where there is a lack of side clearance.