Buy the powerful 427W - 538 HP Crate Engine with a 5-speed transmission from TD Motion. Designed for the FFR MK4, combo delivers performance. The 427w / 538 HP Crate Engine W/ 5 speed Transmission Delivers a big punch. A Big upgrade for the FFR MKIV, Superformance cobra. 4 Bolt main Block. Direct replacement for your old 289, 302, or 351w. Huge torque gains. Power Forged Pistons, Cast Steel Crank, Steel beam Rods, Roller Camshaft, Roller Valvetrain. Aluminum Cylinder Heads Flow exceptionally better than the old Iron Heads. Just the right amount of classic Thump Idle sound. Pump Gas Friendly. Available with Sniper EFI or Carburetor. 4.100 stroke. Buy now!