Work in progress
This part of Swaplements is still being built. Data can be incomplete or wrong here. If you spot something off, there is a contact form for that.
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About

Why Swaplements exists

Swap knowledge is scattered across forums, groups and videos. Swaplements collects it in one place — structured, traceable and with sources.

The idea

An engine swap rarely fails because of the engine. It fails on the oil pan, the wiring loom, the driveshaft, the ECU — on the twenty small things nobody wrote down beforehand. Those small things are what you find here.

How the data is built

Every swap is documented along the same blocks: engine origin, oil pan, engine mounts, gearbox, driveshaft, wiring, ECU, exhaust, cooling, brakes. Every statement needs at least two independent sources, otherwise it is marked as not backed.

An empty field with a reason is a better result than a plausible-sounding invention. That is why fields stay open here where other sites guess.

What Swaplements is not

It is not a guide to getting past an inspection. The focus is engineering and documentation. What is legally allowed is decided by the inspection authority — not by this site.

Current status

The database is being built. It grows swap by swap instead of in one big release. If you find an error or want to contribute your own build, the contact page tells you how.

Focus
BMW and VAG, plus classic conversions from the rest of the world. Diesel and turbo swaps explicitly included.
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