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Ultra Pro Magnum Rocker Arm w/ 1.6 Ratio for SBC w/ Twisted Wedge Head; This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. This 1.6 ratio rocker fits SBC intake valves with a Twisted Wedge Head and a 7/16" diameter stud.

Ultra Pro Magnum Rocker Arm Set w/ 1.6 Ratio for SBC w/ Twisted Wedge Head; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. These 1.6 ratio rockers fit SBC intake valves with a Twisted Wedge Head and a 7/16" stud.

Ultra Pro Magnum Self-Aligning Rocker Arm w/ 1.52 Ratio for SBC/V6 w/ 3/8" Stud; This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.52 ratio, this rocker fits '88+ Chevrolet Small Block and V6 with a 3/8" diameter stud.

Ultra Pro Magnum Self-Aligning Rocker Arm Set w/ 1.52 Ratio for V6 w/ 3/8" Stud; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.52 ratio, these rockers fit '88+ Chevrolet V6 with a 3/8" diameter stud.

Ultra Pro Magnum Self-Aligning Rocker Arm Set w/ 1.52 Ratio for SBC w/ 3/8" Stud; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.52 ratio, these rockers fit '88+ Chevrolet Small Blocks with a 3/8" diameter stud.

Ultra Pro Magnum Self-Aligning Rocker Arm w/ 1.6 Ratio for SBC/V6 w/ 3/8" Stud; This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, this rocker fits '88+ Chevrolet Small Block and V6 with a 3/8" diameter stud.

Ultra Pro Magnum Self-Aligning Rocker Arm Set w/ 1.6 Ratio for V6 w/ 3/8" Stud; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit '88+ Chevrolet V6 with a 3/8" diameter stud.

Ultra Pro Magnum Self-Aligning Rocker Arm Set w/ 1.6 Ratio for SBC w/ 3/8" Stud; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.6 ratio, these rockers fit '88+ Chevrolet Small Blocks with a 3/8" diameter stud.

Ultra Pro Magnum Rocker Arm w/ 1.7 Ratio for Ford 3.8L V6 w/ 3/8" Stud; This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.7 ratio, this rocker fits Ford 3.8L V6 with a 3/8" diameter stud.

Ultra Pro Magnum Rocker Arm Set w/ 1.7 Ratio for Ford 3.8L V6 w/ 3/8" Stud; These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.7 ratio, these rockers fit Ford 3.8L V6 with a 3/8" diameter stud.

Ultra Pro Magnum Rocker Arm w/ 1.7 Ratio for Chevrolet 396-454 w/ 7/16" Stud; This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.7 ratio, this rocker fits Chevrolet 396-454 with a 7/16" diameter stud.

Ultra Pro Magnum Rocker Arm Set of 12 w/ 1.7 Ratio Chevrolet 396-454 7/16" Stud; 7/16" Stud, 1.7 Ratio