The Comp Cams Ultra ARC Aluminum Series Rocker Arms increase engine power improve valvetrain stability and enhance oiling efficiency. Their extruded designdeveloped using FEA analysiscreates a stronger stiffer rocker body without adding unnecessary weight. The ARC series rocker arms feature an Arced Recessed Contoured design delivers an optimal strength-to-weight ratio. Backed by a Lifetime Warrantybuy them once and use them forever. Engineered for applications running up to 700 lbs of open spring pressure.
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![COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\" Stud](https://sdda.semadata.org/Standard/Edelbrock/19052-1.jpg "COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\\" Stud")
![COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\" Stud](https://sdda.semadata.org/Standard/Edelbrock/19052-1_C.jpg "COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\\" Stud")
![COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\" Stud](https://sdda.semadata.org/Standard/Edelbrock/19052-1_D.jpg "COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\\" Stud")
![COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\" Stud](https://sdda.semadata.org/Standard/Edelbrock/19052-1_B.jpg "COMP Cams 19052-1 Ultra ARC Rocker W/ 1.6 Ratio For \'77-\'92 Ford 289-351W W/ 5/16\\" Stud")
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