I’m not certain you can buy the R44 in a non tapered seat configuration these days. Someone may prove me wrong, but you may have to find NOS for the 44 or step down to a 43.
Right or wrong….lots of folks here, including yours truly, are running the R45. RockAuto lists it as the plug for a late 235.
Last edited by JW51; 12/01/2023 2:11 AM.
