Chevrolet LS9 V8 Discontinued As 638-HP Supercharged Crate Engine Leaves The Lineup

End of the RoadChevrolet has dropped the LS9 long-block V8 crate engine on its website, labeling it as “Discontinued.” The automaker instead points customers toward the LSX376-B15, which makes less power on paper but, like the LS9, is capable of supporting boost for tuners looking for forced induction, whether turbocharged or supercharged.At the same time, Chevrolet teased what could potentially be a new engine, though no details were disclosed. In an Instagram post, the teaser simply read, “Something BIG is coming,” which could be tied to the new sixth-generation 6.7-liter naturally aspirated small-block LS6 V8 powering the returning Corvette Grand Sport for the 2027 model …