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Thumbnail Filmstrip of RCD- 201020-0007 Degree Ring - 4 magnet 6-3/8" Small Block RCD Crank Trigger Wheel Images
Billet Aluminum - with magnets- fits Scalloped RCD hubs
RCD Degree Ring
6.37"" Diameter w/ magnets ( 6-3/8" )
Timing marked
Use this on the SB Chevy where you had a 6-1/4� Balancer previously or on RCD crank support for SB Chevy