Product Description
Michigan Motorsports' LS1 Rocker Arms with Trunnion Bearings Professionally Installed
Upgraded strength bolts are included for installation.
Whether you have a stock LS motor or a highly modified LS motor, replacing your rockers with a true roller bearing setup is highly recommended. The stock bearings have a tenancy to fail. These rocker arms are a must have for any aggressive heads and cam combo. We utilize LS rocker arms and install new LS1 rocker arm retro-fit trunion kit that replaces the cageless, loose OEM needle bearings and powdered metal trunion with a premium 8620 steel alloy trunion and caged roller bearings for added durability. The caged roller bearings that greatly reduce the possibility of the bearing failure experienced with stock LS1 needle bearings, which can send loose needles throughout the engine upon failure.
Fits all these applications: LS1/LS2/LS6/ LR4 Vortec 5300 LM7 L59 LM4 L33 – 4.8/5.3/5.7/6.0/ Engines. Will not fit Rectangle Port/"LS3" Style heads.
This kit includes:
16 LS Series Rocker Arms with Roller Bearing Trunnion Upgrade Installed
16 High Strength Allen head bolts for LS Rockers
Fits: LS1 LS2 LS6 LR4 LM7 L59 LQ4 LQ9 LM4 L33 LS4 LY2 L20 LY5 LMG LMF LH6 LC9 LH8 LH9
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Product Reviews
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LS rockers
I could not rebuild my own rockers for the price of these! great value.
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Rocker arms
Great quality fast shipping
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LS rocker arms
Received in good shape, upgraded trunions as advertised.
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Easy to install and high quality, would definitely recommend for the price
High quality
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LS1 ROCKER ARMS WITH UPGRADED TRUNIONS
Excellent rocker arm kit. Look and feel very solid. Peace of mind when assembling the build
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Ls1 upgraded rocker arms
Great quality product
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LS1 Rocker arms
Perfect fit, easy install, quality product!
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Great value
Affordable and dependable
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New rockers replacing OEM 5.3L TM7 WITH 322k miles
Orignal miles 322k, 2001 Silverado Z71, replaced Cruz the old ones were ok but needed needed to be replaced!! No failures on oem stuff, just a lot of road miles to South Texas ! Best replacement rocker arm for the old, still runs hard 5.3l. Replaced 4l60e @ 197k, Get these better than OEM STOCK STEEL PINIONS! Maybe I'll get another 322k + on these!