V6, 2954 CC Used Engine Fit Years: 1989-1991; DOHC, 24 vavle, Right head on intake side has front valve cover bolt hole in center of #1 cam cap, Fits 7/89-8/90, 929S.
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V6, 2954 CC Used Engine Fit Years: 1990-1992; DOHC, 24 valve, Right side of head on intake side, front valve cover bolt is offset on front cam cap, Fits 8/90-7/91, 929S.