The LH6 engine is a 5.3L Gen. IV aluminum engine that replaced the LM4 in 2005. It was the first Gen. IV LS truck engine and offered Active Fuel Management […]
The LH8 is a 5.3L Gen. IV aluminum block engine truck engine that appeared in 2008-09 GM trucks, including the Hummer H3, Chevy Colorado, and GMC Canyon. The engine specs […]
Editor’s Note: The following letter is in response to an answer in a previous column concerning whether to go with a 5.3L LS engine or a larger 350ci small-block Chevy. […]