The Poncho boasts a Mercury (yep, the boat engine guys) SB4 engine which uses an LS7 short block coupled with the company’s very own dual overhead cam cylinder head. The result is a unique looking engine package, boasting four valves per cylinder, and a whopping 700 naturally aspirated horsepower.- 245hp more than a standard LS7 that Mecury’s engineers attribute to the efficiency of the alloy, DOHC cylinder heads.