Vortec L31 Small Block Chevy Engine

Learn the differences between Chevy 2-bolt and 4-bolt main blocks, how to ID them, key years, and whether a 4-bolt is worth it for your build

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.

Small block Chevy V8 or the modern LS V8? Which one comes out on top as the best engine to swap into your ride?

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

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

Derek kicks off his 55 Chevy rebuild with a fresh small block.

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

In this Tech Tip, John answers a customer concerns about adding additional drop to his 1960-1972 Chevy truck.