The timing spline ensures the timing chain stays taut

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2× CNC aluminum mounting brackets

Incorporating a 2-row 42mm dual core equipped with CSF's exclusive B-tube technology

The BMW Motorsport 3

BMW S14 Short Block Assembly Service I The timing spline ensures the5150 AutoSport Short Block Build Service for BMW S14 Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. When your BMW engine needs to be built right the first time, 5150 AutoSports Short Block Assembly Service delivers the precision, consistency, and experience demanded by high performance BMW builds. This service is performed in house by BMW focused engine builders