Chevrolet LT1 Engine Info - Heads of the Class
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While this story is about the LT1 head, keep in mind that LT4 engines used a similar head that actually flows substantially more. The LT1 employs a 170cc intake port volume while the LT4 pumps this up to 195 cc's while also using larger 2.00-/1.55-inch valves. Airflow also increases dramatically, yet the heads look almost identical. For more information on LT4 cylinder head flow, you can refer to CHP's "Flow To Go" story in the Oct. '98 issue. View Related Article
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