Gaskets are decent quality and should hold up well, but screws can break when tightened. I had to pull out the intake and rear one broken bolt and then reassemble with original MOPAR bolts. If I were to do this job again I would use Felpro gaskets and MOPAR bolts. About $25 more but the peace of mind is worth it. Also, do not use the supplied thermostat. Doesn't always open at the right temperature. Go with a $7 booth.