Description Tough Material for Extreme Duty Awesome for Block Repair or Modification on the ST225 Five Cylinder Engine. With Focus ST and RS engine being pushed to and beyond their limits, we’ve had requests to supply replacement steel liners for them. We use the best name in the business; Darton! The Darton sleeve kit is just what you need to rescue a damaged engine from the scrap yard. No need to source a second hand engine, or pay ridiculous prices for a new engine, rebuild the one you have!
