Engine assembly is one of those processes that understandably terrifies a majority of the DIY-type enthusiasts out there, and for good reason. You’re piecing together the heart of your engine, where components are rotating hundreds of times per second with engine bearing and other clearances being measured down to the thousandths and even tenths of a thousandth of an inch in some cases! Needless to say, accuracy and patience are of the utmost importance here.

When installing main engine bearings and connecting rod bearings, following the correct procedures will reduce excess wear and friction to guarantee a long and healthy life for your engine’s rotating assembly. For those of you who are all-in on doing this yourself or are just curious to learn more about what is involved — King Engine Bearings has created a simple twelve-step installation guide for rod and main bearings!