Gilbert Smith is an automotive journalist with over five years of specialized research and writing experience. Before joining CarBuzz in 2024, he produced in-depth buyer’s guides and feature articles ...

Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up their budget Chevy 305 small-block (SBC), or the larger and more popular ...

A lawsuit against GM over alleged excessive consumption of oil by Generation IV 5.3L Vortec 5300 V8 engines used in a range of Chevy and GMC vehicles has been decertified as a class action suit by the ...

A complete guide to the history of the LS and Vortec engine brands, the differences between them, and their components. Back in the early 1990s the Gen II LT1 and LT4 engines powered GM's hottest ...

What happened to the big power numbers of the 454? The last generation big-block by GM (Vortec 454) leaves much to be desired when it comes to output. The Vortec big-block was gifted with a sequential ...

A GM 5.3L V8 Vortec oil consumption class-action lawsuit has been settled with lawyers cashing in with a big pay day. The lawsuit was filed 8 years ago according to CarComplaints.com and was settled ...

A lawsuit against GM that alleges excessive engine oil consumption in the automaker’s 5.3L V8 engine has been allowed to continue in an Oklahoma federal court after the judge overseeing the lawsuit ...

Some engines just won't go away. Back in the May '11 issue, we brought you the first part of our budget-built 400 small block Chevy. The idea was to bolt a set of iron Vortec heads on a junkyard 400 ...

Cross-Fire Engine was supposed to be a landmark for GM, but there's a reason it's called the 'Cease-Fire.' See the design compromise that killed its performance ...