Fluidampr Harmonic Balancer for Nissan RB26DETT

PART # 610901 Fitment 1989-1994 Nissan Skyline BNR32 GT-R. RB26DET Phase-1 engine. Bore Diameter 1.1800" Degree Marking Range 7 marks, 5 degrees apart Degree Markings Engraved Engine Balance Internal Finish Black Zinc Keyway Single; (5mm) Length 3.131" Material Steel Mounting Hardware Included No Outside Diameter 6-1/8" Pulley Finish Black Hard Coat Anodized Safety Rating SFI 18.1 Weight / Rotating Weight 11.0 lbs / 7.3 lbs PART # 610911 Fitment 1993-2002 Nissan Skyline BCNR33 GTR, BNR34 GTR. RB26DET phase-2 engine. Bore Diameter 1.1800" Degree Marking Range TDC. 6 marks, 5 degs Degree Markings Engraved Engine Balance Internal Finish Black Zinc Keyway Yes Length 2.995" Material Steel Mounting Hardware Included No Outside Diameter 6-1/8" Safety Rating SFI 18.1 Weight / Rotating Weight 10.9 lbs / 7.3 lb