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General TechGood at troubleshooting? Have a non-specific issue? Discuss general tech topics here. IF YOUR QUESTION IS SPECIFIC TO A CERTAIN MODEL, IT DOES NOT GO IN THIS SECTION.
Im looking to find out, in 1969 from the Tonawanda plant, what cars got a 427 that we’re NOT COPO.
The 427 came out in 1966 and was available in the sedans, coupes, station wagons, as well as Corvette and the Camero.. It even came in the
medium-duty GM trucks as well. Unfortunatly in the 1970's the smog laws lowered compression ratio's and GM came out with that awful 454 CI mill.