Genuine Shelby engine as fitted to Marcos Mantis circa 1999 this engine has been fully rebuilt,only 18 of these cars were built by Marcos so this is a rare engine kicking out 500 bhp in supercharged form like this,capable of much bigger bhp with charge cooler fitted and scope to boost the supercharger,comes fitted with correct Tremec 5 speed gearbox for this engine with hydraulic slave cylinder and Hurst shifter.Brand new Vortech supercharger which is like a belt driven turbocharger plus misc ancillaries fitted ie starter motor and alternator plus most of the plumbing and induction parts inc the charge cooler. The engine is complete.