8.1 BBC STEEL TRUE ROLLER TIMING SET WITH 9 KEYWAYS FOR TWO DEGREE INDEXING 2001CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. This is a new 8. 1 GM BBC steel timing set Extreme Racing part # 9 85388 is for engines made in 2001. Engines from 2002 to 2003 use part 9 95388. The 2004 to 2007 use part number 9 36388. This is a heat treated machined steel timing set with the black oxide coated 9 key way crank gear. The American made nine key way crank gear is indexed and clearly marked for easy 2 degree cam timing changes. It has the