M20 Stroker Kit
If you’re ready to add some substantial horsepower to your M20 engine, this is the only logical choice. Combine this stroker kit with our Super Sport or Race cylinder head for some impressive power numbers! This kit is available in a variety of options.
- OEM BMW crankshaft (Forged for 2.9L & up)
- Crankshaft adapter sleeve installed
- 9.75:1 85mm bore Ross Racing forged pistons with wrist pins & rings
- New crankshaft main bearings & connecting rod bearings
- New OEM crankshaft bolt & machined washer
This kit is designed to use 135mm connecting rods. There are multiple OEM options to choose from such as: M20B25, M52B28, S50B30, S52B32, and M54B30. We also have the option to add our Molnar H-Beam rods with ARP hardware to your purchase at a discounted rate. For the 2.9L stroker kit we have the option to include the Mahle Motorsport “Ultimate Street Stroker” pistons in 10:1 compression.
Photo is a general representation. Actual parts may vary slightly.
In-stock stroker kits may take up to 1 week before shipment. If your piston choice is not currently in stock, please expect 6-8 weeks production time. Molnar H-beam connecting rods are currently on backorder. We expect to have the Molnar rods back in stock in early December.