Hi there. Thanks for getting in touch. I have an engine rebuild project underway which requires larger valves and valve seats. The RB26DETT seat is exactly the size and profile I'm looking for. I haven't arrange the work to be done yet, just collecting the engine parts at this stage. Hope to get the head and bore work done in a few weeks. If you have a recomendation then happy to follow it up. I live down the gold coast. Cheers Richard