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400 ford engine

  1. 400 Ford Engine D7TE-A-2-B Should I use this to replace my old 351C?

    Classic Cougar Tech
    So, I'm not well educated when it comes to motors. I could spend hours and hours doing some research but I'm not sure how much that would help. I figured my best first step would be to start here. To start with, my 351C in a '71 Cougar needs new valve guides. This I know because it smokes like...