Granatelli LT 112mm throttle bodies are billet drive-by-wire throttle bodies for GM LT1, LT4 and LT5 engines. For heavily modified LT builds, a 112mm throttle body is the bigger of our LT options.
This collection includes the GM LT1/LT4/LT5 112mm billet drive-by-wire throttle body in two finishes: natural billet (GMTBLT112) and black billet (GMTBLT112B).
Both are drive-by-wire designs for GM LT engines, so they're intended for LT-powered builds using electronic throttle control.
How to choose: confirm your engine is an LT1, LT4 or LT5, then decide between 112mm and our 103mm options based on how far your build goes. Once you've picked the size, choose natural or black to match your engine bay.
