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Hi can you tell you if the 1975 Corvette L48 had aluminum heads and and if it was a four bolt main?
Wiki User
∙ 8y ago
The 1975 L48 Corvette engine was the "base" engine and never was offered with aluminum heads or a 4-bolt main block from the factory. The L82, offered in 1975 had 4-bolt mains but still only had cast iron heads.
Wiki User
∙ 8y ago
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