Restoring an M20B25 for my BMW E30!

The time has finally come to get my E30 back on the road! After an extremely rocky first month of ownership getting the car running and driving for the first time in 18 years, the teeth on the timing belt ripped off and grenaded the original M20B27. Due to prioritizing the start of my 6-month long Miata restoration, whichI had been planning for years prior, I had to tuck my E30 away in storage for the remainder of 2025. Fast forward to 2026, I scooped up an M20B25 from a 1988 325i, paid my dues on researching what's needed for the swap + restoration, and got to work. This film is the result of all of many late nights researching, planning, and executing my dream. It's getting harder and harder to find E30's with properly restored M20's as 24v swaps are so abundant (respectfully so). That being said, I'm proud to pay my dues to one of the most iconic engines in Classic BMW heritage. While not the most powerful engine BMW ever built, I truly think the M20B25 is one of the most beautiful engines BMW ever produced. Drowning in a sea of raw aluminum, zinc plating, and semi-gloss black accents; this engine just looks right at home in an E30. 🖤 As always, I hope you all enjoy the film! I'll be back soon to further document to restoration of my dream car! One Love, -Aidan. Use code "AIDANMT" for 10% off the entire ‪@GriotsGarage‬ website! www.GriotsGarage.com ‪@fcpeuro‬ carries over 200,000 parts in stock to keep our Euro cars on the road, backed with a Lifetime Warranty Guarantee! Visit www.fcpeuro.com 00:00-02:31 Intro 02:32-06:30 Engine Removal 06:31-08:53 Engine Teardown 08:54-12:14 Waynes Vapor Honing 12:15-16:36 Engine Painting 16:37-17:20 Zinc Reveal 17:21-21:53 Accessory Assembly 21:54-27:26 Final Assembly 27:27-28:36 Grand Finale 28:37-29:01 Credit