I know that’s what he’s referring to, but you can’t just go out and ‘make’ 340 mounts, and NO they are not available in the after market. Further more, adding a bunch of washers and shims to a wrong 318 mount isn’t anywhere near as good as a proper 340 mount. He just needs to actually read my reply. Yes you can buy shumaker (so?) or other people’s house made brands, but NO you can’t buy oem 340 mounts.