Engine Cylinder Head Bolt Set, Victor Reinz 14-10054-01 (Discontinued)

engine cylinder head bolt set using new head bolts when performing a cylinder head installation is always a good idea however, on late-model engines that came from the factory with tty (torque-to yield) head bolts, replacement is an absolute necessity. Tty bolts are designed to exert the maximum clamping force for a tight head gasket seal, however they permanently stretched and could fail if re-used. aplication summary: ford - 2003 e-150 v6 4.2l, 2003 e-150 club wagon v6 4.2l, 1997-02 e-150 econoline v6 4.2l, 1997-02 e-150 econoline club wagon v6 4.2l, 2003 e-250 v6 4.2l, 1997-02 e-250 econoline v6 4.2l, 1997-03 f-150 v6 4.2l, 2005-08 f-150 v6 4.2l, 2004 f-150 heritage v6 4.2l, 2004-07 freestar v6 3.9l, 2004-07 freestar v6 4.2l, 1997-04 mustang v6 3.8l, 2004 mustang v6 3.9l, 1997 thunderbird v6 3.8l, 1998-03 windstar v6 3.8l, mercury - 1997 cougar v6 3.8l, 2004-07 monterey v6 4.2l