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Pentastar Power: A look inside the Detroit factory that pumps out FCA's potent V6

The Mack Avenue Engine Plant is one of Fiat Chrysler Automobiles' most historic and prolific factories. It pumped out 260,000 Pentastar V6 engines last year, providing power for everything from the Jeep Grand Cherokee to the Dodge Challenger. FCA and its predecessor, Chrysler, has owned the factory since 1953 and it briefly built the Dodge Viper in the 1990s. It's made engines since 1998 and began building the Pentastar in 2014. We got an inside look at the mighty Mack, helping to tear down a Pentastar engine and then a tour of the factory floor. This is what it's like. Plants/Manufacturing Chrysler Fiat Videos Original Video pentastar v6

Question Of The Day: Most overlooked heroic engine?

All of us know that the small-block Chevrolet V8 was a masterpiece of engineering that made the high-performance overhead-valve V8 affordable to the masses, and that the Mercedes-Benz OM617 diesel is basically immortal, and that the Toyota R engine defined what it means for a vehicle to be considered Warlord Grade. The AMC straight-six. The Model T engine. The Volvo Redblock. Those engines get the respect they deserve. But what about the engines that we don't think much about, the ones that worked hard in their millions and somehow missed attaining legend status? The list of engines beloved by their aficionados but not thought of often by the rest of us goes on and on: the Renault Ventoux, Mitsubishi 4G1, MeMZ-968, and so on. But my vote goes to the Chrysler flathead straight-six. This engine was produced starting in 1929 and was still being made for stationary industrial use in the early 1970s. It powered just about every type of Chrysler vehicle made for decades, hauled supplies for all the major Allied armies in World War II, and was even developed into a five-bank, 30-cylinder tank engine. It was simple and reliable and outlived most of its competition, and you rarely hear much about it these days. What's your choice?

Junkyard Gem: 1954 Plymouth Savoy Sedan

American car shoppers bought many millions of the four-door sedans that flew off Detroit's assembly lines in the decade after World War II, and so plenty of them still remain in barns, garages, driveways and yards today, awaiting loving owners who will put them back on the road. Unfortunately, those with the time and money to take on challenging vintage automotive projects tend to prefer coupes and convertibles, especially those made by the higher-prestige marques. That means that many of these cars continue to run out of time with each passing day, taking that final tow-truck ride to their very last parking spaces. Today's Junkyard Gem is one of those cars: a 1954 Plymouth Savoy four-door painted in Piedmont Maroon, found in a Denver self-service yard recently. As an example of how many of these cars still get crushed each year, here's a partial list of some of the 1946-1956 American four-door sedans I've personally documented in car graveyards over the last decade or so: 1947 Dodge Custom, 1947 Frazer Manhattan, 1948 Plymouth Special Deluxe, 1949 Dodge Coronet, 1949 Kaiser Special, 1949 Oldsmobile 88, 1949 Plymouth Special Deluxe, 1950 Cadillac Sixty-One, 1950 Chrysler Royal, 1950 Studebaker Commander, 1951 Chevrolet Styleline, 1951 Frazer, 1951 Lincoln Cosmopolitan, 1951 Plymouth Cranbrook, another 1951 Plymouth Cranbrook, 1952 Kaiser, 1952 Buick Special, 1952 Mercury Custom, 1953 Packard Clipper, 1953 Plymouth Special, 1953 Pontiac Chieftain, 1955 Studebaker Commander, 1956 DeSoto Fireflite and a 1956 Mercury Montclair. It's especially tough for the 1946-1954 Plymouths, because those cars were seen as stodgy transportation appliances for cheapskates when they were new. As the 1940s became the 1950s, most American cars became longer, sleeker and flashier-looking, but Plymouths seemed to stay the same. For the 1955 model year, Plymouths got a clean-sheet redesign and caught up with current styling trends well enough (probably not coincidentally, Plymouths finally got their own dealerships in late 1954, rather than just being sold out of Chrysler, DeSoto and Dodge showrooms). But for 1954, the best Chrysler could do with the looks of the increasingly aged-looking Plymouth was give it a new grille and some body chrome. Bumpers were made to stick out a few extra inches to cheat on the overall length a bit.