Notes: Long block, IMPORTANT: See Warranty Information Bulletin. The VIN #is required to ensure that the correct part is shipped. SFI fuel system. Block cast #XW4E-AD/BA, 4F1E-AA. Chain Driven Cams, timing cover Installed Cast #1S7E. Crank cast #V86, VI60. Left head cast #YL8E-DB/BB, YF1E-FC, 3L8E-BB. No Oil Cooler, Customer Must Reuse or Supply Their Own Oil Cooler. Right head cast #YL8E-DB/BB, YF1E-FC, 3L8E-BB. Call Surefire at 1-800-790-9094 for customer service, availability and technical assistance.