I was searching all day on the internet and i cant find hardened valve seats this is driving me crazy.its like they are all bought by someone right when i purchased a head off ebay.i found 2 for 9.99 but all they have is one last box unless im mistaken about the description.in my search im finding 1.50 1.40 some 1.30 but not 1.38 or 1.75 well actually i have but its limited stock.this is making my beyond pissed off i was looking for an upgrade to 1.80 intake and maybe 1.50 exhaust.does anyone know of any vendors sales upgraded valve seats or know of any heads that use the same size because im getting nothing but chrome jdm valve seats but again i would be more likely to fit the 144 170 and some year 200.if i have to i just want the stock 1.75 intake and 1.38 exhaust If anyone can help me out here
You probably aren't finding them because it isn't something the average hobbiest or even restoration shop buys. Those are something a machine shop would be able to provide pretty easily and machine to the proper size.
https://ussealparts.com/cylinder-head-parts/valve-seats.html https://goodson.com/collections/valve-seats https://www.summitracing.com/search/part-type/valve-seats http://www.sbintl.com/valveseatinserts.html
