The first difference that stands out between the LSA and LT4 General Motors engines is that the first is obviously an LS, while the latter is an LT. While being of two distinct small block engine ...

GM LSA engine, as also seen in the Cadillac CTS-V and Chevrolet Camaro ZL1. Fitted with an Eaton four-lobe supercharger and water-to-air chargecooling, it’s a monster. Throttle response is ...