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0405htp Ls2 14 Z

A new, electronically-controlled throttle (ETC) is part of the LS2's standard features. ETC has been used on the Corvette and some other Gen III engines, but all LS2s will have the system. Instead of a traditional throttle cable, an electric motor attached to the throttle body actuates the throttle blade. The throttle opening itself measures 90mm.
LS2: An Inside Look

A new, electronically-controlled throttle (ETC) is part of the LS2's standard features. ETC has been used on the Corvette and some other Gen III engines, but all LS2s will have the system. Instead of a traditional throttle cable, an electric motor attached to the throttle body actuates the throttle blade. The throttle opening itself measures 90mm.  View Related Article

 

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