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Decoding/Numbers / Re: Help to decode a SBC please
« on: June 15, 2015, 04:06:45 PM »
L48 was not offered on SS Impala in '69. Engines were restricted to 427 only in either 390 or 425hp versions. My brother has one with the 390 and THM400. Car is a blast to cruise in and he uses all of that 390hp to launch it when challenged by anyone thinking it is a 307 sled.