The standard block and head have to be retained but the head is reworked with larger inlet and exhaust ports, along with larger valves made in titanium.是什么意思_The standard block and head have to be retained but the head is reworked with larger inlet and exhaust ports, along with larger valves made in titanium.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句