Labwork Aluminum Bell Housing For GM Chevy Small & Big Block Manual Trans 3899621

So, you're building a Chevy and need a solid bell housing?

This labwork aluminum one is a direct replacement for the classic GM part number 3899621.

It's designed to fit small block and big block Chevys from 1959 all the way up to 1988.

This is the manual transmission version, so it's the clutch housing that goes on the lower part of the engine.

It's brand new, still in its original packaging, and ready to bolt on.

The best part?

It's made from aluminum, so it's strong but lightweight.

And it comes with a 1-year warranty from the manufacturer.

Simple, straightforward, and exactly what you need for that build.