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Originally Posted by Rovin4life
if they leaked quick I would assume that the installer didnt follow directions or did something wrong at time of install.
other then warping a head or damaging the head they should last a long time.
besides studs are no guarantee of staying in place as well.
when you go to take off leaking head gaskets and find the head bolts tight then its a fair bet the issue is bad gaskets and not head bolts.
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They were installed correctly. Took a few years to start to leak again. Studs allow for correct tension to be obtained without the inconsistancies of steel to alloy and condition of threads. Steel and alloy have a reaction with each other. Just because that the bolts were tight to undo, does not mean that they were at the correct tension. The heat and expansion during engine operation changes the tension as well.
Nearly all leaking head gaskets on Rover V8s are from the front or rear water galleries. Even though there is no definitive reason for this, incorrect tension is a likely factor. The studs are about the same price as new bolts, so why not go for the better option and eliminate one risk.