Top Definition
A higher performance version of the LT1, the LT4 featured improved cylinder head design, a specially designed intake manifold, and a camshaft with increased lift and duration. The factory horsepower rating is 330HP, however, many believe the true power is greater than that.
The LT4 is found on the 1996 Corvette Gran Sport.
by Artificialist November 16, 2005
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