Chevy 400 Engine

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

Decode small block Chevy engine suffix codes and block casting numbers with our SBC decoding info guide. Learn how to find and decipher your small block Chevy engine codes quickly and easily!

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

Why was the Pontiac 350 phased out for the Chevy 350? Discover the key differences, performance, and advantages between these iconic GM small-block V8 engines.

Identify SBC heads using casting numbers, style tips, and year-by-year guides for your small block Chevy engine projects

The 454 big block Chevy is still a popular build option for when there is no replacement for displacement!

Knowing popular engine dimensions and weights are critical to a successful engine swap in your project vehicle

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!