Spec E30 & Pro3 Legal Engines

Our class-legal M20 engines are built to the letter of the rulebook. Every measurement, compression target, and component choice is selected to ensure full compliance with series regulations while extracting the maximum allowed performance. If you need an engine that passes tech and performs consistently all season, this is it.

A Formula Built for Your Ruleset

Every racing series has different limits, and BimmerHeads ensures you get the most engine possible within those boundaries. We work directly with you to define the build spec that meets the rules of your class—no guesswork, no compromises.

Complete Crate Engines: Tested, Run-In, and Ready to Install

All BimmerHeads M20 race engines are available as turn-key crate motors:

• Fully assembled by experienced race engine builders
• Run-in and tested on our engine stand for compression, leak down, and oiling verification
• Shipped ready to install on a pallet to your shop or picked up directly from our facility

You get an engine you can trust: broken in, proven, and ready for competition.

‍

‍