CJ Posted March 2, 2012 Share Posted March 2, 2012 I am buying things ready for my MR2 tubby conversion and have been offered OEM head studs or pattern studs. Pattern studs are much cheaper but are they inferior? Link to comment Share on other sites More sharing options...
CJ Posted March 2, 2012 Author Share Posted March 2, 2012 Anyone out there can advise? Link to comment Share on other sites More sharing options...
Digsy Posted March 3, 2012 Share Posted March 3, 2012 If they are designed to be yeild (stretch) tightened like the OEM studs will be then I'd go with OEM. The clamp load for a yeild tightened fastener is mainly dependant upon the material properties and for a head bolt they are controlled very tightly. Of course I may be doing the pattern parts a disservice, but you know the OEM parts will be the correct quality. Link to comment Share on other sites More sharing options...
CJ Posted March 6, 2012 Author Share Posted March 6, 2012 Thank you for the reply my friend. I think for the difference in price, the OEM ones win out. Link to comment Share on other sites More sharing options...
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