The term valve-in-head engine is identified in base64 scheme by the sequence dmFsdmUtaW4taGVhZCBlbmdpbmU=, while the MD5 signature is equal to ca3c4a0622d053b85be44711d659eb5d. The ASCII encoding of valve-in-head engine in hexadecimal notation is 76616c76652d696e2d6865616420656e67696e65.