These bearings are out of my pro 4 engine that we are now running as an outlaw figure 8 car at Irwindale. They have 105 trips to the track between races and practice days plus an unknown number of dyno pulls. They are going to be put back in the engine due to they still look great and the clearance is still perfect. All of this with Lucas Oil 20/50 racing synthetic.

KSRACING

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