Crossword clues for Some big engines:DIESELSSome big enginesROARBig engine soundVROOMBig engine soundGTOSBig-engined Pontiacs of oldROARWhat lions and big engines doSTPBig engine additiveCANALBig engineering projectDIKEBig engineering projectGIANTFANBELTBig engine part?RAMJETBig airplane engineFDNYInits. on Big Apple enginesCORLISSBig name in engine design.PRATTBig name in aircraft enginesBOSTONHome of the civil-engineering boondoggle known as "The Big Dig"ERIECANALNineteenth-century engineering project mockingly nicknamed Clinton's Big Ditch