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![433962-1 Aluminum Roller Rocker Arm for Big Block Chevy Engines 1.8 Ratio x 7/16 in. [Each]](https://www.jegs.com/images/mini_750/jegs_default.png)
Vehicle Info NeededMANLEYPART NUMBER: 660-433962-1
433962-1 Aluminum Roller Rocker Arm for Big Block Chevy Engines 1.8 Ratio x 7/16 in. [Each]
$2999
Ships on 09/15/2026
Lowest Price GuaranteeChevy Big Block
- Aluminum Roller Rocker Arm
- Big Block Chevy Engines
- 1.8 Ratio
- 7/16 in. Stud Mount
- Sold Individually
This Manley Aluminum Roller Rocker Arm is lightweight and strong, offering a balance of durability and reduced mass, which is crucial in high-revving engines. Manley, a company known for producing high-quality engine components, manufactures this rocker arm to withstand extreme conditions typically encountered in motorsport, such as high RPM, heavy loads, and high temperatures.
High-Performance Rockers
Manley Aluminum Roller Rocker Arms are engineered to ensure precise valve timing and smooth operation. This precision helps ensure consistent performance, reliability, and optimal engine efficiency, especially at high RPMs.
Part TypeRocker Arm
Product LineManley Aluminum Roller Rocker Arms
BrandMANLEY
Package Height0.5
Package Width4.75
Package Length8.0
Weight0.5 PG
Part CategoryPerformance Parts
Rocker Arm Ratio1.8
Stud Size 7/16 in.
Rocker Arm Nut StylePolylock
QuantitySold Individually
MaterialAluminum
Part FitmentSemi Universal
Rocker Arm Mounting StyleStud
Engine Make/SizeChevy Big Block
Rocker Arm StyleFull roller
Vendor Part Number433962-1
Package Qty1
Package TypeEA
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