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Chrysler almost smothered the Hellcat before it lived

Chrysler's 6.2-liter supercharged Hellcat V8 was an absolute sensation from the very moment it was announced, and honestly, how could it not have been? Packing 707 horsepower and 650 pound-feet of torque, its numbers immediately put every other production muscle car (and many supercars) to shame. Plus, we soon learned that would be wrapped in a package retailing for around $60,000 - a pittance compared to other vehicles offering similar grunt. However, the Hellcat almost never got the chance to rumble under the hood of the Challenger and Charger.
The Hellcat was initially proposed back in 2011, back when Fiat was deciding its future strategy for Chrysler Group, according to Automotive News. At the time, the company was just emerging from its bankruptcy doldrums, and an ultra-high-performance V8 wasn't exactly a must-have item. The program didn't move forward. However, SRT engineers kept fighting, according to AN, and four months later, they received the green light to pull the project off the shelf and continue developing the Hellcat. The muscle car world is certainly better for that decision.
The work of those engineers focused on taking Chrysler's standard 6.2-liter V8 and making it reliably handle all of the extra power from the supercharger. "It came down to micron levels of changes in the crank to be able to withstand the pressures of the engine," said Chris Cowland, director of advanced and SRT powertrain, to Automotive News. The changes amounted to switching out about 91 percent of the parts to make the Hellcat, including some quite minuscule alterations. For example, the washer holding the supercharger pulley is embedded with industrial diamonds to keep it from slipping.

Dodge Challenger Shakedown: '71 body, new guts

While Jeep has created a number of vintage-bodied custom vehicles with modern components, this year's SEMA show plays host to Dodge's take on the idea. The Shakedown concept began life as a 1971 Challenger and ditched almost everything in it, including the engine and chassis. What's left is a modern car with a retro look. The chassis was a particularly complicated part of the job, since the Challenger was originally a unibody car. However, Dodge chose to separate the Challenger's iconic body from its structural parts, and moved it onto a custom, one-off chassis from which the body can be removed as needed. The chassis also carries lowered suspension, Challenger Hellcat brakes, and a 6.4-liter 392 Hemi V8 connected to a six-speed manual transmission from the Viper. Dodge also installed the engine using the new Hemi engine swap kit from Mopar. With the shaker cold-air intake and custom exhaust, the Shakedown's powerplant makes 485 horsepower. View 13 Photos The body itself received plenty of tweaking as well. Dodge shaved off the drip rails, door handles, and turn signals for a cleaner look, and also fitted the grille, headlights, and taillights from a 2017 Challenger. The whole thing is finished in matte black paint with a "vibrating" stripe offset on the left side. The Shakedown also gets 20-inch Slingshot rear wheels and a pair of custom 19-inch versions for the front. On each fender is a bright red "392" decal that uses the same font as the labels on classic Mopars 360 cubic-inch V8s. Inside, the Shakedown gets the same radical upgrade as the chassis. Two Viper seats accompany a Viper steering wheel, and the rear seats are gone altogether. The Viper gearbox is shifted with a Challenger Hellcat gear knob, and carbon-fiber accents and leather adorn the wheel, door panels, instrument panel and center console. Related Video: Image Credit: FCA, Joel Stocksdale SEMA Show Dodge Coupe Concept Cars Performance

Gas prices down, 707-hp engine production up... USA!

On Saturday, the United States of America will celebrate its 239th birthday. That means fireworks, barbecues, block parties, and, oh yeah, Hellcat engines and low fuel prices. The most American of (Mexican-built) powerplants, the big, loud, supercharged, 707-horsepower Hemi is slated for yet another production boost to match up with some serious demand, while the dino juice it runs on is cheaper than it's been in over half a decade. The Saltillo, Mexico engine factory already produces some 4,000 Hellcat engines each year – that's in addition to the Tigershark four-cylinder, the 5.7-liter Hemi, and 6.4-liter SRT Hemi V8s – and it's not entirely clear how many more might get added to that total. What we do know, though, is that Fiat Chrysler can't build the engines fast enough. "We're going to build more [Hellcats] for 2016," SRT boss Tim Kuniskis told Automotive News. "It's a small sliver of what we sell, but it really creates a halo for the rest of the lineup. For example, the next highest car, the Scat Pack Challenger, I have essentially a zero-day supply. It's sold out." This bit of good news comes on the back of something equally good – low summer gas prices. According to the US Energy Information Administration, the nationwide average for for "all formulations" of fuel in June sits at $2.885. Ignoring the remarkably low prices we saw in January and February of this year – figures that themselves hadn't been seen since May of 2009 – the national average hasn't sat that low since October 2010. So yes, it's a very a good time to be an American gearhead. News Source: Automotive News - sub. req., US Energy Information AdministrationImage Credit: US EIA Green Plants/Manufacturing Dodge Fuel Efficiency Coupe Performance Sedan dodge challenger srt tim kuniskis dodge charger srt