Chevrolet Duramax 6.6 LB7 - iFixit
www.ifixit.com › Device › chevrolet_Duramax_6The LB7 Duramax engine is a 6.6-liter engine produced by DMAX, a joint venture between General Motors and Isuzu. The LB7 is part of General Motors’ Duramax V8 engine line. The LB7 was initially installed in 2001 Chevrolet and GMC trucks and was an option in pickups, vans, and medium-duty trucks between 2001 and 2004.