Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions Installed -Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LM7 Beige 25100

Michigan Motorsports LS1 Rocker Arms with Trunnion Bearings Professionally Installed LS1 Rocker Arms have been disassembled and new Trunnion Bearings have been professionally installed LS1 style 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. 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.