Dyno balls

Kenne Bell development engineer Ken Christley data logged our dyno runs through the Hellcat’s CAN buss. The engine run parameters were recorded to aid development of their new “Hellcat” blower kit. This will allow naturally aspirated 392 owners to step up to 901 hp for around $7,000. We’re getting ahead of ourselves here, but the numbers pencil out like this: Buy the 392 Scat Pack Challenger for $39K, add the Kenne Bell blower kit for $7K, and move into the fast lane for around $46K and change, all in. It’s a great alternative for those who can’t pony up for the Hellcat’s $60K right off the bat.

And so two weeks later, a forlorn looking 440 Six Pack engine arrived at the . loading dock. Grimy and rusty, it was a long way from its factory-rated 390 horsepower and 490 lb-ft of torque. After digging in, it was determined this was a case of an owner who was in way over his head. When the valve covers were removed, a set of high-zoot roller rockers appeared, but upon close inspection, several lash adjustment balls were scarred and pitted from improper clearance and oil starvation. Beyond that, the exotic rockers were squandered on a mild hydraulic flat-tappet camshaft—not a solid-lifter unit where their adjustability would actually be needed.

Dyno balls

dyno balls


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