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1987-1987 Chevrolet R20 Suburban
Cast iron head
Not intended for use in set up of ring and pinion gear sets
Impact absorbing rubber bushings with steel core are used to mount Mustang style racks
Isky Cams 7 Degree Steel Valve Spring Retainers - Set of 16 - Use w/ #ISK6005, 6105 Valve Springs Suspension Load Stick 1987-1987 Chevrolet R20 SuburbanIsky 4130 chrome moly steel retainers are ideal for most oval track applications. They are engineered to last a lifetime. As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve train
