When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Picked up a set of 243 heads for my LQ9 build, and noticed that the valves seem to have some cupping, I’m wondering if this is normal? They all seem to be the same, have been told it’s normal, have also been told they’re nfg. There’s less than 40k miles on these heads.