Logic says "hell yes" to using new head bolts.
Look, you've gone to all the trouble to get there, finish it correctly. Plus, the bolts aren't brutally expensive.
HOWEVER: before you pull the head, I'd recommend that you check the head bolt torques first. Do this by a 1/4 loosen, then torque-tighten with your torque wrench. If the bolt won't torque, you have stripped block threads and you'll need to drill and use bolt adapters.
Now, the head install what you can do is use a hacksaw to saw off the heads of the used bolts. Next, saw in a slot to fit a slotted screwdriver. 2 bolts will do.
Insert the bolts into any 2 bolt holes, loosely. Use then as a guide for your head. Once the head is seated, start a couple of the new bots, then ease our your guide bolts.
Yes
buy a head gasket remove the bolts,put the head gasket on the block line the new head up with the bolt holes put the bolts back in and put the cams back in time.
Most definitely the ideal answer would be YES! The integrity of the bolt is not the same once it has been torqued appropriately
No you do not.... the valve cover only bolts to the head, and the head bolts to the block... True- these are two different jobs. When changing your valve cover gasket you may just want to ensure that your head bolts and lifters are still torqued down properly. Otherwise, DO NOT remove the head gasket if you simply want to change the valve cover gasket. when replacing the head gasket you should replace the valve cover gasket and may need to (depending on make & model) replace the egr gasket, intake mainifold gasket, and exhaust manifold gasket ...but not the other way around. If your replacing the head gasket ask your local auto shop if they carry a head gasket kit that includes everything necessary in one box...but if your just changing the valve cover gasket then just change that.
no the head separates from block the valve cover comes off the head bolts are under that and take them out and pry head up and then replace head gasket then repeat the order put head back on and tighten bolts and be sure not to scratch the head gasket when you put the head back on
The head bolts will not have the same clamping capabilities, since they were stretched on the first installation. You may blow a head gasket due to the bolts losing torque.
Definitely yes. You cannot properly torque used head bolts. Some may disagree, but I would replace them.
I am currently changing a head gasket in a 93 Toyota 22re. I'm willing to share info on the process. I had to grind one of the head bolts off to get it out, I'm also replacing the timing chain.
Yes, replace the head bolts.
A head gasket set and new head bolts.
you are suppose to replace head bolts they stretch and head will not torque right. When you buy the new gasket, order new bolts.
Yes, replace the head bolts with new ones.