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are 2" taller than stock and clear most roller rockers and valve-train components. The ... , alternator brackets and aluminum rockers. Dimensions accurate within 1/8". 4248 ... -1/4" taller than stock, and clear most roller rockers and valve-train components. Our ... Check clearance prior to purchase. 4431 AMC 290-304-343-360-390-401 V8 (no baffle ...