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⚡ Elevate your LS engine game with rock-solid precision and unstoppable RPM power!
Michigan Motorsports LS1 Rocker Arms come pre-assembled with upgraded trunnion bearings designed to fit a wide range of GM LS engines (4.8L to 6.0L). Engineered for enhanced durability and high-RPM performance, these rocker arms replace factory components with OEM-spec machining and premium materials, ensuring long-lasting valvetrain stability for street and track enthusiasts alike.
| ASIN | B01JDIQRQK |
| Best Sellers Rank | #43,625 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Engine Rocker Arms |
| Brand | Michigan Motorsports |
| Customer Reviews | 4.7 4.7 out of 5 stars (334) |
| Date First Available | August 20, 2015 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8 pounds |
| Item model number | 25100 |
| Manufacturer | Michigan Motorsports |
| Manufacturer Part Number | 25100 |
| Model | LS1 Rocker Arm Kit |
| Product Dimensions | 8 x 6 x 2 inches |
M**E
Upgraded Trunnions
Quality part everything looked and felt great.
S**E
Good stuff
Nice rocker arms. Work well.
J**B
Great value for the money. Installed on 243 heads with no issues.
These are not OEM GM rocker arms, but they feel and look nearly identical, no issues in the casting whatsoever that I can see. These are insurance so if you have a rocker fail the needle bearings don't scatter into your motor like the factory rocker arms will.
A**R
So far so good
Seems to be doing well I’ve have them in for a month now did the afm/dod delete ls7 lifters and cam tuned and been running this Silverado hard and not and issues so far
M**A
Good value
Just installed and they are great so far. Very happy with my purchase. Can’t beat the price!
J**.
Perfect for 5.3l lm7 gen3 ls engine
Very nice rocker arms. They came in perfect condition. Used in a 5.3l gen3 lm7 ls engine
I**.
Good quality but, shipping was a joke.
Michigan Motorsports makes products and USA owen and came a week before it said it would. I have bought many products but, I'm highly disappointed in shipping on these trunions they came in a bubble wrapped lined envelope what a joke. Box was beat to crap and crushed In luckily nothing was hurt. Quality is great just shipping on these is a joke. I don't mind paying more for shipping for better quality. Just do better already talked to their customer service they are great.
T**S
Fit right
Still on
K**N
Excellent replacement part
Perfect replacement part and seemed to be built better then oem, very happy
M**E
Fit perfect
Good quality
Trustpilot
1 month ago
3 weeks ago