Day: 11

Buick Unveils 400HP RWD Avista Concept at Detroit Auto Show

While it’s not the reincarnation of the Grand National some enthusiasts were hoping for (or even a Riviera), all eyes are on Buick at the Detroit Auto Show after it unveiled the new Avista concept—a 400-horsepower rear-wheel-drive two-door powered by a new twin-turbocharged 3.0-liter V6. The car sits on a 110.7-inch wheelbase—identical to the new sixth-generation

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Mailbag: The Cure for Loose Roller Rocker Arm Nuts

Q: I’ve installed a set of steel roller-tip rocker arms on my Ford 302 engine. The cylinder heads are also equipped with aftermarket rocker arm studs and pushrod guideplates. Unfortunately, the rocker arm nuts keep coming loose. What can I do? A: Most aftermarket steel roller-tip rocker arms use OE-style self-locking nuts. If your rocker arm studs

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