M30 Performance Cylinder Head

Our performance cylinder heads are completely torn down and rebuilt receiving the following: Cleaning Pressure testing Resurfacing Valve grinding & valve seat grinding New valve guides New valve seals & cam seals New intake & exhaust studs New rocker arm hardware & eccentrics New heavy duty rocker locks New heavy duty rocker arms Extensive porting & polishing Our cylinder heads are built to order. There are no cancellations allowed on cylinder head orders. Please expect a minimum lead time of 8 weeks due to our current workload. Price INCLUDES a refundable $700 core charge. Once you have received your BimmerHeads cylinder head please re-use our packaging to send your core 885 cylinder head back to us. Once your core has passed our inspection and testing you will be issued a refund. IMPORTANT: Please specify your cylinder head type in the notes at checkout! We most commonly work with the M30B34 and M30B35 cylinder heads.