When you change the head gasket set do you need to change the head bolt set also?

It depends on the application.



Many engines now use what is called %26quot;Torque to Yield%26quot; bolts on the heads, and other places. The best way to determine if you should replace them is to look at the factory torque specs for your engine. If it is given as: torque to xx foot pounds, and then turn an additional 90 deg, this is a torque to yield bolt, and should not be re-used.



Even an engine that does not use the TTY bolts would be happier with new ones!When you change the head gasket set do you need to change the head bolt set also?always a good idea .. most bolts are stretched when torqued
When you change the head gasket set do you need to change the head bolt set also?
no just need to add a new exhaust
When you change the head gasket set do you need to change the head bolt set also?
Yep, what pete said. Some cars it is really a good idea to replace them. Some cars it doesn't matter. What engine is it?
It'll depend on the engine...make, model of car etc. You'd do best to find out for sure from the manufacturer or, if they aren't that expensive, then go ahead and replace them.