its the stock 373 with eaton posi.....its a 454 C.I.
its the stock 373 with eaton posi.....its a 454 C.I.
2004 Silverado:THELSX L.M.E LSX 454 C.I tuned by Llavero 11.1 N/A @121 MPH
2004 Sierra:GUNSLINGER L.M.E LSX 427C.I,Twin Borg Warner/Forced Induction 76mm, th400, Ford 9" with ladder bar