Nhra Legal Stock Eliminator 283 Chevy
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A close-up of the crank scraper reveals two pieces of sheetmetal sandwiching a strip of Teflon. These are carefully cut so the crank and rods actually rub against them. After the engine runs for a short time, it becomes a "zero" interference fit. Even with the low viscosity racing oils, this scraper arrangement still shows an improvement on the track. View Related Article
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