69 L36 427/390hp M21 4spd Posi-tract 3.36 Gear Ratio on 2040-cars

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2014 Chevrolet Silverado and GMC Sierra debut all-new designs, three new engines

General Motors has finally dropped the curtain on the 2014 Chevrolet Silverado and 2014 GMC Sierra. Both trucks have undergone substantial revisions with updated versions of the company's 4.3-liter V6, 5.3-liter V8 and 6.2-liter V8 engines. In a shot across the bows of both Ford and Chrysler, GM says it won't use a V6 engine adapted from passenger car applications. Instead, it developed the 4.3-liter engine based on its proven truck-duty architecture.
All three mills will boast direct injection fuel systems as well as a new cylinder head design. Combined with a revised piston, the new engines feature a smaller combustion chamber with a compression ratio of 11:1 or higher depending on the application. Cylinder deactivation and continuously variable valve timing are all part of the recipe, and each engine is paired with a six-speed automatic transmission with auto grade breaking. So far, no fuel economy or horsepower figures have been released, though GM says the new engines will best their predecessors in both areas.
Outside, the trucks feature a number of enhancements to reduce drag and wind noise, and GM claims both the Silverado and Sierra will offer buyers some of the quietest cabins in the class. Extended cab models now feature front-hinged rear doors to allow easier access to the back passenger area, and Crew Cab buyers can now select between a five-foot, eight-inch bed or a six-foot, six-inch bed. Buyers with a mind toward going off road will also rejoice in the return of the Z71 package, complete with Rancho shocks, front tow hooks and additional under-body protection.

Vert-A-Pac train cars kept your Chevy Vega's price in check

Our apologies to those who've seen this before, but for the rest of the class, how awesome are these pictures of the Vert-A-Pac shipping system General Motors came up with to ship the Chevrolet Vega back in the 1970s? Developed along with Southern Pacific Railroad, GM was able to double the amount of Vega models it could ship by packing them into the unique storage cars vertically.
At the time, rail cars could fit 15 vehicles each, but Chevrolet was able to lower shipping costs by making it possible to ship 30 Vegas per rail car, in turn allowing the price of the Vega to remain as low as possible. Each rail car had 30 doors that would fold down so that a Vega could be strapped on, and then a forklift would come along and lift the door into place. All the cars were positioned nose down, and since they were shipped with all of their required fluids, certain aspects had to be designed specifically for this type of shipping, including an oil baffle in the engine, a special battery and even a repositioned windshield washer reservoir. See for yourself in our image gallery above.

Chevy SS prototype spotted wearing Pontiac G8 clothes

Do not adjust your computer screen, you are not seeing the rebirth of the Pontiac brand. General Motors has chosen to use a G8 to disguise a test mule for the latest prototype of the forthcoming Chevrolet SS. The G8 was closely related to the Holden Commodore and Vauxhall VXR, the platform upon which the new Chevrolet performance model will be based. It should come as little surprise, then, that GM has opted to use the cladding from the former G8.
Thought the front clip of this mule is pure Pontiac, note the vents immediately behind the front wheel. That is a distinctive design hallmark of the Vauxhall VXR. Also note that this vehicle is right-hand drive, as the Holden and its Chevy counterpart will be very closely related. That likely includes potential drivetrains. The spy photos of this mule also reveal very wide rear tires, and rear wheels that do not match the fronts.