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⚡ Upgrade your LS engine’s heartbeat with precision-engineered rocker arms!
Michigan Motorsports LS1 Rocker Arms come as a complete set of 16 ready-to-install units featuring upgraded 8620 steel trunnions with caged roller bearings. Designed for 1999-2013 LS cathedral port engines and 1999-2006 6.0L LS engines, these rocker arms improve durability, reduce friction, and save installation time by arriving pre-assembled. Perfect for performance builds and reliable engine rebuilds.
| ASIN | B01JDIQRQK |
| Best Sellers Rank | #48,314 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 (350) |
| Date First Available | August 20, 2015 |
| Exterior | Machined |
| 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 |
F**O
For a 2012 Silverado 4.8
So far so good went with a btr truck Norris cam and caddy lifters. Btr rods and springs. For a 2012 Silverado. Haven’t tuned it yet and the check engine light went away. Truck loves it.
T**D
Quality parts with fast delivery
Delivered a day early Nice quality parts
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.
S**E
Good stuff
Nice rocker arms. Work well.
J**N
Great quality
10/10 recommend this for anyone rebuilding
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
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!
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
4 days ago