Are these rocker arms compatible with an LS1 cam swap?

YES! Michigan Motorsports LS1 Rocker Arms are specifically designed to handle aggressive camshaft profiles and high-performance cam swaps.

What engines are these rocker arms compatible with?

These rocker arms are compatible with LS1, LS6, and other GM LS-based engines. Will not fit Rectangle Port/"LS3" Style Heads

Do these rocker arms come with a trunnion upgrade?

Absolutely! These rocker arms feature upgraded trunnions with heavy-duty captured needle bearings for improved performance and durability.

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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

Product ID: 50644903

🔧Complete set of 16 ready-to-install rocker arms

⏱️Pre-assembled upgraded trunnions save install time

⚙️8620 steel trunnions with caged roller bearings

$488.72

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Description

⚡ Upgrade your LS valvetrain with precision-engineered power and zero downtime!

NEXT LEVEL DURABILITY - 8620 steel trunnions with caged roller bearings for smoother, longer-lasting performance.
TIME SAVING PRECISION - Professionally pre-assembled trunnions eliminate weak points and speed up installation.
ALL IN ONE VALVETRAIN UPGRADE - Complete set of 16 rocker arms ready to bolt on—no rebuild hassle.
ENGINEERED FOR CATHEDRAL PORT LS - Perfect fit for 1999-2013 4.8L, 5.3L, 5.7L & 6.0L LS engines—no guesswork.
BUILT FOR PERFORMANCE RELIABILITY - Ideal for rebuilds, swaps, and high-RPM builds demanding rock-solid valvetrain stability.

Michigan Motorsports LS1 Rocker Arms come as a complete set of 16, designed specifically for 1999-2013 Cathedral Port LS engines and 1999-2006 6.0L LS engines. Featuring premium 8620 steel trunnions with caged roller bearings, these rocker arms are pre-assembled for quick installation, enhanced durability, and reduced friction—making them the ultimate upgrade for performance builds and reliable engine rebuilds.

Specifications

ASIN	B01JDIQRQK
Best Sellers Rank	#32,577 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 (338)
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

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$488.72

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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3 days ago

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