Just like most of you I have a 2003 Toyota camry,2.4 liter.This car was literally babied it's whole life.116000 miles! I could hears rattling.I thought it was the loose change.In the change drawer!I found out it is a leaking head gasket!I am a retired mechanic.
Here is the question:Every one is restoring the threads in the block.Rather it be Time serts,Helicoil,keen serts,or what ever!But then you go and screw in this long head bolt.Now your back to the same thing.Twisting a metal bolt back into the threads.twisting the entire length of the bolt,while torquing!
ARP 203 4303 is a stud kit!It turns the long head bolts into STUDS.And get this when you torque studs! It's 100 foot pounds!
After I helicoil & (ceramic glue) this stud into the block again!That stud ain't never ever coming out ever again.With a nut on top.All I have to do is twist the nut to torque it!!