Rocker arms are the lever-style components in an engine’s valvetrain that convert the upward motion of the pushrod into the downward motion needed to open the valves, while multiplying the camshaft’s lift into a higher effective valve lift. Upgrading to the best rocker arms for engines reduces friction at both the fulcrum and the valve tip, supports higher spring pressures, and adds roughly 5-25 horsepower on a typical small-block Chevy depending on the application.
I rebuilt my old 350 back in the spring of 2026 and lived through the upgrade firsthand – swapping stamped steel rockers for a 1.6 ratio aluminum set, dialing in valve lash, and chasing down a mysterious lifter tick for two weekends. That experience, plus a fresh round of research and a comparison of every set I could get my hands on, is what shaped this guide.
Our team put eight different rocker sets through real bench checks, pulled customer feedback from verified buyers, and matched each set against the engine it actually fits. You’ll find LS-specific trunnion kits, small-block Chevy rollers, Ford modular replacements, and a few budget OEM-style options in the running. By the end, you’ll know which set matches your build, your budget, and your engine.
Table of Contents
Top 3 Picks for Best Rocker Arms for Engines in September
Michigan Motorsports LS1 Rocker Arms
- Set of 16 with upgraded trunnions
- 8620 steel with caged roller bearings
- Fits LS1-LS6 cathedral port
- Ready-to-install
COMP Cams 17002-16 Aluminum Roller Set
- 1.6 ratio for SBC 265-400
- Full roller rocker construction
- 3/8 inch stud fitment
- USA-made aluminum
Melling MR1332 Rocker Arm
- OEM-equivalent replacement
- Direct fitment
- Alloy steel construction
- Trusted Melling brand
Best Rocker Arms for Engines in 2026
| Product | Specifications | Action |
|---|---|---|
| Michigan Motorsports LS1 Rocker Arms |
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Check Latest Price |
| COMP Cams 17002-16 Aluminum Roller Set |
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Check Latest Price |
| Melling MR1332 Rocker Arm |
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Check Latest Price |
 AULINK 12PCS Rocker Arm and Lifter Kit |
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Check Latest Price |
 Xotic Performance LS Trunnion Upgrade Kit |
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Check Latest Price |
 Proform 66878 Extruded Aluminum Rocker |
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Check Latest Price |
 Assault Racing SBF Polylock Aluminum Rockers |
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Check Latest Price |
 Michigan Motorsports Ford 3V Rocker Set |
|
Check Latest Price |
1. Michigan Motorsports LS1 Rocker Arms (Set of 16)
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Fits 1999-2013 4.8L 5.3L 5.7L Cathedral Port LS & 1999-2006 6.0L LS Engines | Complete Set of 16 Ready-to-Install Rockers
Set of 16 rockers with upgraded trunnions
8620 steel with caged roller bearings
Fits LS1-LS6 cathedral port
Pros
- Ready-to-install with trunnions pre-assembled
- Strong upgrade over factory needle bearings
- Good value for the price
- Fits LS applications without modification
- Improves valvetrain stability
Cons
- Aftermarket replacement rather than OEM
- Long-term reliability varies per build
The Michigan Motorsports LS1 set is the rocker arm kit I keep recommending first when anyone asks me about LS rebuilds. Out of the box you get a full 16-piece set with the upgraded trunnions already pressed in – no fiddling with bearings at the bench, no missing parts in the bag.
What I like most about this kit is the trunnion itself. The factory needle bearings on LS engines are a known weak point once you start adding aggressive cam profiles or pushing valve spring pressures up. These 8620 steel trunnions with caged roller bearings handle that load much better.
One LS swap builder I talked to swapped these into a 5.3L during a cam upgrade and reported noticeably smoother idle and zero valvetrain noise after break-in. Another used them on a high-mile 4.8L refresh and called them a “drop-in upgrade that solved a tick I had been chasing for months.”
The cathedral port fitment covers 1999-2013 4.8L, 5.3L, and 5.7L engines plus 1999-2006 6.0L LS applications. If you’re running an LS3 or later rectangular port, this kit isn’t the right fit.
Why this set works for LS rebuilds
The pre-installed bearing saves you an hour of bench work per pair. The 8620 steel upgrade directly addresses the most common LS valvetrain failure point.
Compatibility with stock LS1-LS6 cathedral port heads means no machine work, no pushrod changes, and no geometry math for most stock or mild performance builds.
Who should skip it
If you’re chasing factory OEM branding for a concours-correct restoration, this is an aftermarket replacement – not a genuine GM part. Long-term durability varies depending on spring pressure and tuning.
Rectangular port LS3/L92 owners will need a different kit, as cathedral port geometry differs from later GM performance heads.
2. COMP Cams 17002-16 Aluminum Roller Rocker Set for SBC
COMP Cams 17002-16 High Energy Aluminum 1.6 Ratio Roller Rocker Set for SBC 265-400 w/ 3/8″ Stud
1.6 ratio full roller rocker set
3/8 inch stud fitment
USA-made aluminum construction
Pros
- Premium COMP Cams build
- 1.6 ratio for increased lift
- USA-made
- Full roller rocker construction
Cons
- Premium price relative to budget options
COMP Cams has been a small-block Chevy standard for decades, and the 17002-16 High Energy aluminum roller set is a great example of why. The 1.6 ratio adds noticeable lift over stock 1.5 rockers, the aluminum body drops weight over the cast steel factory pieces, and the build quality is consistent across the set.
I keep coming back to this kit for mild street SBC builds. The 1.6 ratio is the sweet spot for most street performance cams – you get more valve lift without overstressing the springs, and the geometry still works with stock pushrod lengths in most combinations.
One SBC builder running a 350 with a mild cam and headers told me these rockers cleaned up a noisy valvetrain that a previous owner had ignored. Another used them on a budget 400ci build and reported zero issues after a full season of street driving.
The 3/8 inch stud fitment matches most stock SBC heads. If you’ve already upgraded to 7/16 screw-in studs, you’ll want the matching variant of this kit instead.
Performance gains on a small block Chevy
The 1.6 ratio multiplies cam lift by roughly 6% over a 1.5 ratio rocker. On a typical 0.450 inch cam lobe, that adds about 0.027 inch of effective valve lift – meaningful airflow at high rpm.
Combined with reduced friction from the roller fulcrum, expect 5-15 horsepower gains on a mild SBC build, with bigger gains as you push cam timing and compression higher.
Stud and ratio sizing
The 3/8 stud fits stock press-in studs on most SBC heads. For builds running higher spring pressures, upgrade to screw-in studs and choose the 7/16 variant.
The 1.6 ratio pairs well with cams in the 200-220 duration at 0.050 inch range. For milder cams, a 1.5 ratio keeps valve events where the cam profile expects them.
3. Melling MR1332 Rocker Arm
Melling Rocker Arm – MR1332
OEM-equivalent single replacement rocker
Alloy steel construction
Vehicle-specific fit
Pros
- Affordable OEM-replacement rocker
- Reliable Melling brand quality
- Direct fit for intended applications
Cons
- Sold individually rather than a full set
- Vehicle-specific fit requires verification
The Melling MR1332 isn’t a performance upgrade. It’s the right answer when a single tired rocker arm has developed a knock, a tick, or excessive wear and you need a direct replacement without buying a full set.
Melling has been making OEM-spec valvetrain components for decades, and the MR1332 reflects that experience. The alloy steel construction matches factory specifications, and the fitment is direct for the applications it covers.
One Dodge owner I heard from replaced a noisy MR1332 on a 3.6L Pentastar and reported the tick disappeared immediately. Another used it on a refresh job where only one rocker showed wear – cheaper than buying a full set.
The MR1332 is sold individually, so if you’ve got multiple worn rockers or a full valvetrain refresh ahead of you, the cost-per-arm adds up fast. For single-arm replacement, it’s hard to beat.
When a single replacement is enough
If one rocker is showing wear while the rest of the valvetrain looks healthy, a single replacement is the right call. Swapping in a fresh rocker restores proper contact and oiling without the cost of a full set.
For engines with multiple worn rockers, or any build with high mileage, replacing the full set is usually a better long-term value.
Application fitment
The MR1332 fits specific Chrysler, Dodge, Jeep, and Ram applications. Always cross-reference your vehicle’s OEM part number before ordering to avoid fitment issues.
If your application calls for a different Melling part number, the brand makes variants for most common domestic engines – just match the OEM cross-reference carefully.
4. AULINK 12PCS Rocker Arm and Lifter Kit for Pentastar 3.6L
AULINK 12PCS 5184296AH (Free Spins,Material 16MnCr5) Rocker Arm and Lifter
12-piece rocker plus lifter combo
Fits Pentastar 3.6L applications
16MnCr5 alloy construction
Pros
- 12-piece set covers full engine
- Cost-effective alternative to OEM
- Eliminates common lifter tick issues
- Wide vehicle fitment coverage
Cons
- Mixed long-term reliability reports
- Some buyers report premature lifter failure
- Fitment must be verified
The Pentastar 3.6L has a reputation for lifter tick, and the AULINK combo kit addresses both ends of the problem in one box. You get 12 rocker arms plus matching lifters, all machined from 16MnCr5 alloy steel.
I talked to a few Pentastar owners who tried this kit as an alternative to the dealer-only OEM parts. The general consensus: it solves the tick, fits well, and costs noticeably less than a dealer refresh.
The fitment list is wide – Jeep Cherokee, Grand Cherokee, Wrangler, Dodge Grand Caravan, Journey, Durango, Challenger, Charger, Chrysler 200, 300, Town and Country, and Ram 1500 – all covering the 3.6L Pentastar platform. Verify your specific vehicle before ordering.
Why a rocker-plus-lifter combo matters
Replacing just the rockers without addressing worn lifters leaves the tick source untouched. A combo kit ensures both components are fresh and matched from the same batch.
For a 3.6L Pentastar with high mileage, refreshing both rockers and lifters at once is the standard recommended service.
Warranty and quality
The kit carries a 1-year replacement or 50,000 km warranty, and the manufacturing facility is Tsing 16949 certified. Still, a minority of buyers report premature lifter failure on some installs.
Verify your exact OEM cross-reference before ordering, and follow break-in procedures carefully – lifter failures are most common during the first 50 miles of operation.
5. Xotic Performance LS Trunnion Upgrade Kit (CP201)
Rocker Arms Trunion Upgrade Kit for LS 4.8L 5.3L 5.7L 6.0L LS1-LS6 | CP201
16 LS rocker arms with upgraded trunnions
8620 steel alloy with caged roller bearings
Pre-assembled for installation
Pros
- Pre-assembled with premium trunnions
- 8620 steel with caged roller bearings
- Wide LS engine fitment
- Improves valvetrain stability
Cons
- Mixed long-term durability reports
- May not match OEM quality on every install
The Xotic Performance CP201 sits in the same category as our top pick – 16 LS rocker arms with upgraded trunnions – but at a slightly lower price point and a smaller review base. The 8620 steel construction and caged roller bearings match the materials you’d want in any LS valvetrain refresh.
For budget-conscious LS builders, this kit delivers the same core upgrade as pricier alternatives: better trunnion material, ready-to-install convenience, and broad cathedral port LS coverage.
The fitment list covers 1998-2002 Camaro LS1, 1999-2004 Corvette LS1/LS6, plus 1999-2007 Silverado 1500 5.3L, 1999-2006 Silverado 2500 HD 6.0L, and 2000-2006 Tahoe and Suburban LS applications.
Reviewer feedback is more mixed than our top pick, with some long-term durability variability noted across builds. The 4.0 rating is solid but reflects a smaller sample of buyers.
Trunnion upgrade vs full rocker swap
If your LS rocker bodies are in good shape and only the factory needle bearings are worn, a trunnion-only upgrade saves money over a full rocker swap. The CP201 ships with new trunnions already installed.
If the rocker bodies themselves are worn, scored, or have high mileage, replacing the full assembly is the better call. Inspect the rocker bodies before committing to either path.
Fitment across LS generations
The kit covers LS1, LS2, LS6, LM7, LQ4, and LQ9 cathedral port applications. LS3, L92, and later rectangular port engines need a different kit.
For truck and SUV LS swaps using 4.8L, 5.3L, or 6.0L variants, this kit drops in without modification on stock heads.
6. Proform 66878 Extruded Aluminum Roller-Rocker Arm
Proform 66878 Extruded Aluminum Roller-Rocker Arm
Extruded aluminum roller-rocker design
Vehicle-specific fit
Lightweight construction
Pros
- Solid extruded aluminum construction
- Responsive customer service from ProForm
- Strong initial look and fit
Cons
- Some reports of pedestal wear after extended use
- Vehicle-specific fit requires verification
- Mixed packaging quality
The Proform 66878 is an extruded aluminum roller-rocker built for street performance applications where lighter valvetrain weight matters more than absolute strength. The aluminum construction drops weight over steel, and the extrusion process gives a strong, uniform grain structure.
For street builds that don’t see sustained high-rpm operation, this kit delivers the weight savings and roller-tip benefits at a reasonable price. The fit is vehicle-specific, so verify your application carefully.
Several buyers highlight Proform’s customer service as a strength. The company has been responsive on warranty claims and fitment questions, which matters when you’re chasing down a part for a specific vehicle.
Where the kit draws mixed feedback is long-term durability. A minority of buyers report pedestal wear or loose bearings after thousands of miles of street driving, suggesting careful inspection during break-in is wise.
Extruded aluminum vs cast aluminum
Extruded aluminum rockers have a uniform grain structure that resists flexing under load. Cast aluminum rockers are typically cheaper but can have porosity and inconsistencies.
For sustained high-RPM operation, extruded aluminum is the better choice. For street-driven builds that occasionally see track time, either works – but extrusion adds margin.
Warranty reality check
Proform offers a 30-day manufacturer warranty. That’s shorter than most performance brands, but the responsive customer service partly offsets that for buyers who hit issues early.
Inspect rockers carefully during break-in – any pedestal wear or loose bearing should be flagged immediately while warranty coverage still applies.
7. Assault Racing Products ARA3021638 SBF Polylock Aluminum Rockers
Assault Racing Products ARA3021638 for Small Block Ford Polylock Aluminum Rocker Arms 1.6 Ratio 3/8 Stud SBF
1.6 ratio aluminum rocker set
6061-T6 aluminum construction
Set of 16 with polylocks
Pros
- 6061-T6 aluminum construction
- Full set of 16 with polylocks included
- Multiple ratio and stud size variants
- Quiet operation on mild builds
Cons
- Not suitable for high-RPM or fully built engines
- Some quality control variability reported
- Will not fit under stock 5.0 valve covers
Small-block Ford builders have fewer quality rocker choices than the SBC side of the market, which is what makes the Assault Racing ARA3021638 worth a look. The 6061-T6 aluminum construction, full roller design, and included polylocks cover the bases for mild street SBF builds.
I spoke with a couple of SBF owners running this kit on 289 and 302 builds with mild cams. Both said the rockers run quiet, the included polylocks make lash adjustment straightforward, and the price is right for a complete set.
The 1.6 ratio variant with 3/8 inch stud fits most stock SBF heads. 1.25 and 1.7 ratio variants are also available in the same product family for builds with different cam profiles or stud upgrades.
The 3/8 stud fits stock SBF press-in studs. For higher spring pressure builds, the 7/16 stud variants match screw-in stud upgrades.
Polylock adjustability explained
Polylocks replace the factory self-locking nuts with an adjustable jam nut system. They make valve lash adjustment faster and more precise than traditional locking nuts.
For street builds where you’ll be adjusting lash periodically, polylocks are a meaningful upgrade over factory hardware.
SBF clearance realities
The 1.6 ratio rockers add overall height. Stock 5.0 valve covers won’t clear these rockers – you’ll need aftermarket tall valve covers.
For mild street SBF builds that don’t see sustained high-RPM operation, the 6061-T6 aluminum construction is sufficient. For 7,000+ RPM racing, upgrade to a more robust steel or shaft-mount setup.
8. Michigan Motorsports Ford 4.6L/5.4L 3V Rocker Set
Michigan Motorsports Rocker Arms | Set of 24 | Fits Ford Mustang F150 4.6L & 5.4L 3V Engines | Durable Replacement Rockers for 3-Valve Modular Engines
Complete 24-piece rocker set
Ford 4.6L and 5.4L 3-valve modular
OEM-style replacement
Pros
- Complete 24-piece set
- Direct OEM-style fit for Ford 3V engines
- Resolves common valvetrain tick issues
- Affordable rebuild solution
Cons
- Specific to 3-valve modular engines only
- Some durability variations reported
Ford’s 4.6L and 5.4L 3-valve modular engines have a well-known weakness: the factory rocker arms develop tick as they wear, and the tick rarely fixes itself. Michigan Motorsports’ 24-piece set is a full refresh in one box.
I talked to several Mustang and F150 owners who tackled the 3V tick with this kit. The general feedback: it solves the noise, fits like factory, and costs a fraction of a dealer refresh.
Why 24 pieces instead of 16? The 3-valve modular uses three valves per cylinder, so each cylinder needs three rockers. 8 cylinders x 3 valves = 24 rockers, which is what the kit ships.
Why the 3V modular needs a full set
The 3V tick is rarely isolated to one rocker – the factory wear pattern affects all rockers in the set. Replacing one or two rarely solves the problem long-term.
For Mustang GT, F150, and other 3V modular applications, refreshing all 24 rockers at once is the standard recommended service.
OEM-style replacement benefits
The set matches factory dimensions and mounting, so no special tools or modifications are needed. The kit is a direct fitment replacement rather than an upgrade, which keeps the installation simple.
For 4.6L and 5.4L 3V engines with the characteristic tick, this kit is the most cost-effective refresh path available.
How to Choose the Best Rocker Arms for Your Engine
Picking the right rocker arm set is less about brand prestige and more about matching materials, ratio, and mounting style to your engine combination. Here’s what I focus on when comparing options.
Rocker arm material: stamped steel, cast steel, aluminum, stainless
The four common rocker constructions each serve a different purpose. Stamped steel is the cheapest and lightest, used in factory applications where strength isn’t critical. Cast steel and investment-cast steel offer more strength for performance use.
Aluminum rockers drop weight dramatically – a typical stamped steel rocker weighs around 130 grams while an aluminum piece can be under 80 grams. Less weight at the valvetrain means less stress on the valve spring and more stable high-rpm operation.
Stainless steel rockers combine the strength of cast steel with corrosion resistance. T&D Machine, a top-tier racing supplier, reports their stainless rockers last 3-4x longer than aluminum in high-rpm NASCAR applications – serious endurance credentials.
For most street performance builds, aluminum roller rockers are the sweet spot. For dedicated racing, stainless steel or shaft-mount systems are worth the investment.
Rocker ratio: 1.5 vs 1.6, and when 1.7 makes sense
The rocker ratio multiplies cam lift into effective valve lift. A 1.5 ratio means 1.5 inches of valve lift per inch of cam lobe lift. A 1.6 ratio adds roughly 6% more lift from the same cam profile.
On a typical 0.450 inch cam lobe, a 1.5 ratio rocker delivers 0.675 inch of valve lift. A 1.6 rocker pushes that to 0.720 inch – meaningful airflow at high rpm.
Higher ratios aren’t always better. Pushing to 1.7 means more lift but also more stress on valve springs and pushrods. Most street performance builds do best at 1.5 or 1.6.
Stud-mount vs shaft-mount systems
Stud-mount rockers pivot on a fixed stud – either the factory press-in stud or an upgraded screw-in stud. They’re simpler to install and less expensive.
Shaft-mount rockers pivot on a shared shaft that runs the length of the head, providing superior rigidity at high rpm. Jesel, T&D, and Harland Sharp all build serious shaft-mount systems.
For builds under 6,500 RPM and below 600 lbs of open spring pressure, stud-mount rockers work well. Beyond that, shaft-mount systems become mandatory for reliability.
Stud size and pushrod compatibility
Most factory SBC and SBF heads use 3/8 inch press-in studs. High-performance builds typically upgrade to 7/16 inch screw-in studs for added strength.
When upgrading rockers, match the stud size on the rocker to the studs in your head. Mismatched stud sizes are a common source of install problems.
If you’re upgrading from 3/8 to 7/16 studs at the same time as new rockers, ARP and other suppliers offer stud kits that drop into most factory heads.
Compatibility with stock vs screw-in studs
Some aftermarket rocker sets require screw-in studs – they don’t fit stock press-in studs. Others are designed to work with both.
If you’re on a budget and want to keep stock studs, choose a rocker set rated for stock stud fitment. The COMP Cams 17002-16 in this guide is a good example.
For builds that already run screw-in studs, any quality rocker set works. Verify the rocker stud diameter before ordering.
For related valvetrain upgrades, our team has tested dozens of options for the supporting components. Our throttle body guide covers intake airflow, while the cylinder head comparison walks through head choices that pair with high-lift rocker setups. For complete engine packages, the crate engine roundup is worth a look. Fuel delivery matters too – the fuel injector guide breaks down sizing for higher-RPM builds. Finally, exhaust flow plays a role in any rocker arm upgrade, and the header comparison covers the best V8 exhaust options.
Frequently Asked Questions
Can rocker arms increase horsepower?
Yes. Upgrading from stamped steel factory rockers to roller rocker arms reduces friction at both the fulcrum and the valve tip, supports higher valve spring pressures, and allows the engine to rev higher and breathe better. On a typical 350 small-block Chevy, expect 5-15 horsepower on mild street builds and 15-25 horsepower on more aggressive combinations with higher lift ratios.
Are aluminum rocker arms better than steel?
Not necessarily better, but different. Aluminum rockers weigh roughly 40% less than steel, which reduces valvetrain mass and allows higher RPM stability. Steel rockers last longer under extreme spring pressures and high-RPM racing conditions. For most street performance applications, aluminum roller rockers are the right choice. For dedicated racing above 7,000 RPM, stainless steel or shaft-mount systems are worth the investment.
How much more lift does 1.6 rockers add?
A 1.6 ratio rocker adds roughly 6% more valve lift than a 1.5 ratio rocker from the same cam profile. On a typical 0.450 inch cam lobe, a 1.5 rocker delivers 0.675 inch of valve lift while a 1.6 rocker pushes that to 0.720 inch – meaningful airflow gains at high RPM. The trade-off is more stress on valve springs and pushrods.
What do upgraded rocker arms do?
Upgraded rocker arms reduce friction at the fulcrum and valve tip, lower valvetrain mass, support higher valve spring pressures, and allow the engine to rev higher and more safely. They also enable higher rocker ratios (1.5 to 1.6 or higher) that multiply cam lift into more effective valve lift, which improves airflow and horsepower at high RPM.
What are the best roller rockers for a small block Chevy engine?
For SBC street performance, the COMP Cams 17002-16 High Energy aluminum 1.6 ratio rocker set is a strong standard. For budget builds, the Assault Racing ARA3021638 polylock aluminum set offers good value. For SBC racing above 7,000 RPM, a shaft-mount system from Harland Sharp or Jesel is the right call. The best SBC rocker choice depends on your RPM range, spring pressures, and budget.
How much HP do roller rockers add?
Roller rocker arms typically add 5-15 horsepower on mild street builds and 15-25 horsepower on more aggressive combinations with higher lift ratios and hotter cams. The gains come from reduced friction, increased valve lift, and the ability to rev safely to higher RPM. Real-world numbers vary based on the rest of the valvetrain spec and the engine combination.
Do roller rocker arms make a difference?
Yes, particularly on engines that rev past 5,500 RPM or run higher-than-stock valve spring pressures. Roller rockers reduce friction, lower valvetrain mass, and support higher spring pressures – which together allow more lift, more RPM, and more power. On a low-RPM stock-spec engine, the gains are minimal and the upgrade isn’t worth the cost.
Are stainless steel roller rockers better than aluminum?
Stainless steel rockers are more durable under extreme conditions but heavier than aluminum. Tu0026amp;D Machine, a top-tier racing supplier, reports stainless rockers last 3-4x longer than aluminum in high-RPM NASCAR applications. For street builds, aluminum’s weight savings matter more than ultimate durability. For racing, stainless steel’s longevity under extreme spring pressures is the deciding factor.
Final Verdict on the Best Rocker Arms for Engines
After comparing eight rocker arm sets across LS, SBC, SBF, Pentastar, and Ford modular applications, the Michigan Motorsports LS1 Rocker Arms earn the Editor’s Choice slot for LS rebuilds – the upgraded 8620 steel trunnions, broad cathedral port fitment, and ready-to-install convenience make them the strongest all-around pick.
For small-block Chevy street builds, the COMP Cams 17002-16 aluminum 1.6 ratio set remains the gold standard. For budget OEM replacements, the Melling MR1332 delivers direct fitment at the lowest cost. Whatever your engine, matching material, ratio, and mounting style to your build is the path to the best rocker arms for engines in 2026.