... .1 3.ISO 90001&TS16949 4.Developed by sample&drawing HLTB724 80mm throttle body available for 1998-2002 LS1/LS6Camaro&firebird ... ,5.3&6.0 w/cable style throttle linkage(Polished) HLTB727 80mm throttle body available for 1998-2002 LS1/LS6Camaro&firebird ...