AMERICAN LOCOMOTIVE COMPANY (ALCO) 251 CYLINDER HEADS P/N 822-5738 – Fast Track Railroad Equipment Sales, LLC, is pleased to offer two (2) Alco Cylinder Head Rebuildable Cores for immediate sale or trade.  These cylinder heads have been magnaflux tested and are ready to be reconditioned.  Cylinder heads only, valves and valve springs not included.   This item is ready to ship from our facility in New Hampshire!