What kind of engine is in a Vortec 4300?
What kind of engine is in a Vortec 4300? 4.3L Vortec 4300 Engine Specs. The 4.3 Liter Vortec engine is built by General Motors. This is a V6 engine that has had a long history, although much has changed along the way. The 4.3L Vortec built today is certainly significantly different from the original Vortec first offered in the mid-1980s. Why is my Chevy Vortec 4300 V6 leaking fuel? In the L35 and LF6 engines, the spider injectors are known to leak at the pressure regulator and at the supply and return lines due to a design fault. Outside of...