vocky said:
you need standard size valves, unless the head has been machined, the allecotec valves are fine - have a set in mine (but +1mm)
much better flow too :thumbup:
Vocky helps out as always, thanks! But I do not know if I understand you correctly. I cannot use them for my head? Why is it so? They say on their website "They are OEM replacement so no modification will be required. Simply swap them out with your stock OEM valves are your good to go."
Please note, I do not mean the "GM Racing Stainelss Steel Intake & Inconel Exhaust Valve Set .5mm Oversize 2.2L & 2.0L Ecotec "