M20 Stroker Sleeve

If you’re building a 2.9L or larger M20 stroker engine, this crankshaft adapter sleeve is required to fit the stroker crankshaft to the M20 block. We developed it to achieve the quality, fitment, and tolerances we expect in our own engines. It’s earned our confidence through years of use in the M20 strokers we build.

• Fits: BMW M20 stroker builds (2.9L, 3.0L, 3.1L)
• Made in the USA
• Finished in-house at BimmerHeads
• Optional add-on: machined crankshaft bolt washer, required for proper fitment

The sleeve we use in our 2.9L, 3.0L, and 3.1L M20 stroker builds.