ENGPAR Sales Pvt. Ltd. Supplies Cylinder Block of 50 - 225mm Diameter. ENGPAR Sales Pvt. Ltd. Offers piston rings. Cylinder Block of 50 - 225mm Diameter is manufactured from high quality C.I. Casting and shell molding. Cylinder Block of 50 - 225mm Diameter may help reduce engine problems that may require the use of insurance premiums. The cross-line boring of this block is performed on each piece to achieve virtually distortion less inner bore. These are also applicable for air compressors, industrial engines and tractors.