Upgrade your Predator or Ducar 224 with our exclusive Stage 2 kit. While our competitors kits use an ARC billet rod designed for the smaller 54mm & 55mm cranks, (which requires an awful lot of grinding to the inside of the block) our kit utilizes EC"s forged rod and flat top piston designed for the 58mm crank in the Wildcat 223 engine. Also includes Dyno Cams new pre-clearanced 224 camshaft. This combo requires a lot less clearance work to fit. With that said, this is still not quite, a drop in kit and will require very minor clearance work to the inside of the block.