Since we live in a modern age of technology, I’ve decided to start a Google Sheet dedicated to EF-chassis information that is practical, factual, well-known, or lesser-known but proven to work all while staying budget-friendly for the average DIYer.

So far, I’m focusing on interchangeable parts (assuming a US-spec ’91 EF), along with B-series and K-series swap write-ups presented in a clear, step-by-step format without excessive jargon. The goal is to make this easy to understand, even for people who don’t live and breathe forums all day. Once those are complete, I’m considering adding less common swaps, such as the H-series.

Information gathered from forums, comments, and personal messages will be properly credited and/or linked accordingly.

While I don’t claim hands-on experience with engine swaps, this project is about organizing and preserving accurate, proven knowledge. I welcome shared experiences, constructive criticism, corrections, or suggestions as this develops, and I’ll gladly incorporate feedback as more progress is shown.

 

This is cool. I can add a few items:
EF Front lower control arm bushings interchange with 90-93 integra's (DA9/DB1)
EF front lower control arm assemblies and radius rods, though visually similar, do NOT interchange between these platforms.

 

The brake spindles from EF, EG, EK civics are identical and interchangeable. Can be useful when swapping to disk brakes from drums.
This is the case for Australian models so i'm assuming its the same for American models. I'm not sure about the rest of the trailing arm though.

 

Is this a product that you will be selling or just feeding in to AI?