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The COMP Cams Rocker Arm Shaft Stud Kit - Dodge Gen III HEMI does not have enough exact application evidence to assign safe vehicle YMM. Match manufacturer part number 4589-KIT, exact engine, cylinder head, valvetrain, dimensions, supporting components, clearances, and every product note before ordering.
Key Features
- This rocker stud and nut assembly allows for improved clamping load, adding up to a more rigid, stable and high revving valve train assembly.
- Additionally, it saves the threads in aluminum cylinder heads, especially in race applications that see constant disassembly.
- Manufactured from grade 12.9 hardware, these high-strength studs also help to prevent thread fatigue and pulling of threads in aluminum heads.
- The 12 point flange nuts provide ample clearance to rocker arms for maximum lift potential while a rounded nose on top of the stud prevents cross threading of the nut during assembly.
Fitment
| Fitment Status | Fitment Verification Required |
|---|---|
| Vehicle YMM | Not assigned without exact application evidence |
| Required Verification | Confirm exact engine, cylinder head, valvetrain, dimensions, supporting parts, clearances, and part number |
Specifications
| Manufacturer | COMP Cams |
|---|---|
| Manufacturer Part Number | 4589-KIT |
| Product Type | Rocker Arms |
| Fitment Type | Fitment verification required |
What's Included
One new COMP Cams product in the exact configuration and quantity identified by manufacturer part number 4589-KIT. Springs, retainers, locks, pushrods, lifters, rockers, timing components, fasteners, lubricants, tools, and calibration are included only when expressly stated for this exact part number.
About COMP Cams
COMP Cams develops camshafts, valvetrain components, timing products, and engine-building tools for performance applications. Correct selection remains exact-engine, exact-valvetrain, exact-interface, and exact-part-number specific.
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Browse the COMP Cams collection for related camshafts, springs, retainers, lifters, rockers, timing components, and engine tools.
Frequently Asked Questions
Why is fitment verification required for this COMP Cams product?
Vehicle YMM alone does not identify the required engine and valvetrain configuration. Confirm the exact engine, cylinder head, valvetrain, dimensions, and part number.
Are valve springs or other supporting parts required?
Requirements depend on the exact camshaft and engine combination. Verify springs, retainers, locks, pushrods, lifters, rockers, timing components, clearances, and calibration before assembly.
Does installation require engine measurements?
Yes for most internal valvetrain work. A qualified builder should verify piston-to-valve clearance, spring pressure and travel, coil bind, retainer clearance, geometry, lash or preload, and cam timing.
Installation Instructions
Follow the current COMP Cams and engine-manufacturer instructions for this exact part number. Verify clearances, spring pressure and travel, geometry, lash or preload, fasteners, lubrication, cam timing, break-in, and calibration requirements before assembly. Inspect and test the completed installation before full-load operation.
COMP Cams
Shop COMP Cams camshafts, valve springs, retainers, lifters, rocker arms, pushrods, timing components, and engine tools by exact manufacturer part number and verified application.Choosing the Correct COMP Cams Product Match the complete year, make, model, and application when listed Confirm engine family, cylinder head, valvetrain, and cam specifications Verify springs, retainers, locks, lifters, rockers, pushrods, timing parts, and clearances Use the exact COMP Cams part number to distinguish similar configurations Frequently Asked QuestionsCan I select a camshaft by vehicle alone?No. Also confirm the exact engine, cylinder head, valvetrain, compression, induction, intended use, supporting parts, calibration, and manufacturer part number.Are valve springs or other supporting parts required?Requirements depend on the exact camshaft and engine combination. Verify springs, retainers, locks, pushrods, lifters, rockers, timing parts, clearances, and calibration before assembly.What meas...
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Head Components
Cylinder head components and engine internals for performance builds and OE service are stocked at Black Ops Auto Works. Shop complete cylinder heads, head gaskets, head stud and bolt kits, rocker arms, lifters, camshaft and lifter kits, rotating assemblies, and main stud and bolt kits for LS, LT, HEMI 5.7/6.1/6.4, Coyote, Cummins, Powerstroke, VW/Audi turbo, Subaru, Nissan, and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 972 Head Components SKUs across component type, engine platform, and bore or gasket specification. What This Collection Covers Head Components groups together the parts that live at and around the cylinder head, the area of the engine most affected by heat, combustion pressure, and clamping load. This includes complete heads, head gaskets, head studs and bolts, rocker arms, lifters, camshaft and lifter kits, main stud and bolt kits, and ro...
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Rocker Arms
Rocker arms, roller rockers, trunnion upgrades, and valvetrain hardware control valve motion in performance and replacement engine builds. Shop stud mount roller rockers, shaft mount rocker systems, pedestal shims, rocker bridges, rocker sets, trunnion upgrades, shaft studs, and installation tools for LS, LS3, LS7, LT, SBC, SBF, Ford Modular, Gen III HEMI, Cummins, Honda B Series, H Series, K Series, Jeep 4.0L, and other applications. Black Ops Auto Works carries 24 rocker arm products from COMP Cams, Fleece Performance, Skunk2, Ford Racing, Ferrea, Omix, and other performance brands. Filter by engine family and product details, then verify cylinder head, stud, shaft, pedestal, ratio, valve spring, pushrod, and camshaft compatibility before ordering. What Rocker Arms Cover This collection includes engine rocker arms and related valvetrain components such as roller rockers, shaft rocker kits, trunnion upgrade kits, rocker bridges, rocker arm pedestal shim kits, and hardware. Some...
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