We have never stopped building engines. We’re building crate engines based on our most popular combos and adding to the website for sale as completed. We do no longer take pre-orders for custom built-to-order engines. We obviously did this for many (30+) years and most shops still do. But because of this we kept a back log of a year to year and a half or longer(we were over 2 years out at more than one point!)- so we decided this just wasn’t the best approach for us or the customer. That along with the huge demand for "un-assembled shortblock and longblock “KITS” that the customer or the builder of their choice can assemble prompted this gradual change in our engine program. You can see the most recent crate engines and any new ones we add here:
https://butlerperformance.com/c-1459708-crate-engines-and-builder-kits-crate-engines-butler-built.html?fbclid=IwZXh0bgNhZW0CMTAAAR2a36bL0RORrsyna9GqEABDtELNwI19T7U8A0R8ny3i-XUbScPHvl_jHMc_aem_aj5f6LaeQgIlM_e28ONQFQ