The Best Muscle Cars is proud to offer this MATCHING NUMBERS original miles 409 SS Impala ! The matching numbers 409/425 with dual quads was rebuilt less than 2000 miles ago by Burtonsville Speed, one of Marylands best known performance shops for many years. And attached to a strong M-21 4 speed transmission. This Impala runs and drives as it should with Power Steering . The older paint job shows some wear but is rust free. ENGINE: Numbers matching 409/425 with 2 Carter AFB 4bbl carburetors and Mechanical Fuel Pump. The engine was Bored, Stroked and rebuilt on 6/29/2018. New Crankshaft, Rods, Pistons, Camshaft, Solid Lifters, Valves, Valve Springs, Push Rods, Roller Rockers. The Engine Serial number area was saved when machining the block to show the Matching engine serial number. machine work and assembly was performed by Burtonsville Machine Shop in Laurel Md. Transmission: Muncie M21 Close Ratio REAR AXLE: 3:36:01 or 3:55:01 Brakes: Front brakes have been replaced with Vacuum Power assist Disc IGNITION: Pertronix New tires: 02/09/21 Mechnicial Work: 4/13/22 Replaced upper and lower control arms and front end alignment, replaced rear shocks, manual transmission service, installed kill switch, replaced both vent window crank assemblies. 08/10/21 Installed check valve in fuel line, replaced starter. 05/10/22 Tuned carburetors. Oil has been changed every 500 miles or six months.