4L stroker kits

Whether you're rebuilding

20-1990-01

Compressor Map & Exhaust Flow Chart – Download

Please Note: This does NOT include an ethanol Content Sensor

Complete S14 B25 Drivetrain Turnkey Swap – Ready for Installation Flexplate Bolts 4L stroker kitsThis is a rare opportunity to purchase a complete, fully built BMW S14B25 EVO 2. 5L drivetrain, ready for immediate installation into your roller. This is a full turnkey setup engine, transmission, electronics, and supporting components with less than 3,000 miles since build completion. Engine Highlights: S14B25 2. 5L EVO with new Sport Evo block Fully ported cylinder head for optimized airflow Supertech performance valves, valve spring kit, and shim