mounts both the distributor and oil pump. It also shares the same oiling scheme employing a single passage to feed both cam and crank from the right lifter bank by tangentially intersecting the cam bore instead of two drilled passages, one from the cam to crank and another from the crank to the right lifter bank. Some electrical parts (starter and distributor) were shared with Ford, and some models used Motorcraft (Ford) carburetors, but the balance of the engine design is unique. The Gen-2 AMC V8 was first introduced at in 1966. It was used exclusively in the Rambler American model in the first year. The came out in 1967 and the AMX arrived in mid-1968. These engine blocks were unchanged through the 1969 model year. The head used during this time was the so-called "rectangle port", named after its exhaust port shape. The 290 heads use smaller valves, intake and exhaust, corresponding with its small bore. The 343 and the AMX 390 use the same larger valve heads, intake and exhaust. 290 The base produced with a two-barrel or four-barrel carburetor, respectively. It was built from the mid-1966 model year through the 1969 model year. It has a bore and stroke of . Only 623 cars were built in 1966 with the 290 engine. These engines were available in special Rambler American two-door Rogue models. The newly powered Rogue was available with either a three-speed automatic or a floor-mounted four-speed manual transmission and made the car "suitable for the Stoplight Grand Prix." 343 The has a bore and stroke of . The basic 343/2V produced and was built from 1967 through 1969. Output for the optional four-barrel carburetor version is and produces of torque (gross). This version has a 10.2:1 compression ratio. AMX 390 The AMX engine had a bore and stroke of . It received heavier main bearing support webbing than the smaller AMC V8s, as well as a forged steel crankshaft and connecting rods. Forged cranks and rods were used for their known strength—there was inadequate time for testing cast parts for durability without delaying AMC's introduction schedule. Once forging dies were made it was not cost-effective to test cast parts due to the relatively low number of engines produced. The use of these stronger components was also continued with the production of 401 engines. This is an advantage of these AMC engines when used in heavy-duty