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Join Date: Aug 2004
My Ride: 1992 Dodge Daytona
Engine: 2.5l I-4 super 60
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Re: Keith Black pistons? anyone use them??? how do they hold up?
Well, hyper-eutectic pistons have their advantages--light weight, allows tight piston -> cylinder wall clearances, and low cost to name a few. They're pretty strong as long as you don't smack them with a hammer.
But if you want something more robust and more resilient to your accidental excessive ignition advance, boost spikes, and detonation or whatever, go with the Mahle piston for cost savings and forged if you want to beat the snot out of it. I wouldn't use them in this application. On a TBI engine, I definitely would.
I have a neighbor with a '69 Camaro that runs 11.6's in the 1/4 with Keith Black ~10:1 pistons. Its an all-out drag race car, so not a lot of actual miles on it. In 10 years, the engine has been apart once because of a valve float issue where the piston smacked the valve. The piston made silly of the valve.