Mahle Performance Series Piston Rings - 4.030 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Ductile - Plasma Moly - 8-Cylinder Gauge Mounting Pedestal 1982-1986 Pontiac Bonneville 5

1982-1986 Pontiac Bonneville 5

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Ford Mustang 1978-93

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Mahle Performance Series Piston Rings - 4.030 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Ductile - Plasma Moly - 8-Cylinder Gauge Mounting Pedestal 1982-1986 Pontiac Bonneville 5Every MAHLE Motorsports piston is backed by 90 plus years of racing heritage and technology. From the invention of the first aluminum piston to the most advanced design and machining processes being used today, MAHLE delivers unmatched performance and durability. MAHLE's light weight, low drag, design specific forgings are machined with close attention given to ring groove quality, tolerances and consistency. All MAHLE Motorsports pistons are dual or