Packard built its early success as the standard American luxury car with the four-cylinder Thirty of 1907-1912 and the mighty Six of 1912-1915. But the model that really cemented Packard's reputation as a make of the highest rank was the 1916-1923 Packard Twin Six, which one-upped Cadillac's 1915 V-8 with four more cylinders and lasted with relatively few changes for eight years: a remarkably long run. The Twin Six was the chief reason why, when the wealthy ordered a custom-bodied car, they tended to choose a Packard chassis. Jesse Vincent, Packard's chief engineer, liked the 12-cylinder layout for three reasons: performance, smoothness, and silence. This meant a heavy crankcase and crankshaft and a rigid flywheel. But a Twelve or "Twin Six," Vincent continued, would provide the same rigidity and smoothness with less piston, crankcase, flywheel, and crankshaft weight -- and provide more horsepower and torque, to boot. He preferred a V-12 to a V-8 because a V-8 would require a wider frame, larger turning radius, and more complicated steering gear.

The Twin Six engine duly embodied the above principles, with two banks of L-head cylinders set at a 60-degree angle (versus 90 degrees in Cadillac's V-8). This allowed accessories to be bolted just below the frame, where they were protected from road hazards, while keeping the valves accessible. Delivering 85 horsepower at 3,000 rpm, a bore and stroke at 3.00 × 5.00 inches resulted in a displacement of 424 cubic inches. Rockers were eliminated, with a separate cam for each valve, and all valves were located inboard of the cylinder blocks. A short, light crankshaft ran in three main bearings. For natural performance enhancer more on the 1916-1917 Packard Twin Six, continue to the next page. Bodies, on two different wheelbases, were up to date and offered in wide varieties, both closed and open. All Twins were expensive, but closed cars involved a lot more assembly work: natural performance enhancer while the touring, phaeton, and runabout listed at $2,750, the $3,700 coupe was the cheapest closed model and the Imperial Limousine cost nearly $5,000.

Such figures represented small fortunes in 1916, yet to the Packard clientele they seemed amazing because they were hundreds less than the previous Six. Demand for Twins was brisk and Packard's workforce increased 50 percent to nearly 11,000 in order to meet it. The factory on Detroit's Grand Boulevard underwent a $1.5 million expansion and now covered over 100 acres. New also were detachable cylinder heads, "to insure a more perfect machining of the combustion chamber"; a faster running generator; a higher carburetor to keep it away from the manifolds; a low-current distributor; a lighter-pressure foot brake; and alpha surge male testosterone booster alpha al Palace, and alpha surge male muscle builder alpha surge male alpha surge male reviews performance support were fined for disturbing the royal goldfish -- but the Emperor soon had one himself. A lot of Twin Sixes are still around, because they were built to last. To find specifications for the First Series of Packard Twin Sixes, continue to the next page.

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