1970 Mach1 351c switched to a 4.6 police interceptor

Discussion in 'The Welcome Wagon' started by 1970stanglover, Mar 24, 2013.


  1. 1970stanglover

    1970stanglover New Member

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    I have a 1970 Mach 1 needing restoration. I ran into a guy that swapped a 2004 gm 5.7 into his 70 chevelle. It improved the performance and mpg unbelivably. Got me thinking has anyone ever swapped a 351c to a 4.6l police interceptor into a 70 mustang. I think it would be way more economical yet fast
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  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    yep, its been done. how are your fabbing skills?
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  3. 95 TURBO GT

    95 TURBO GT New Member

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    they are putting the new coyote engines in there too....gas economy yes...but not cheap for the project....cleveland engines built can put down some nice power though.
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  4. candoo

    candoo New Member

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    If this would be your daily driver then sure swap out the 351C for gas milage. If not I would keep the 351C. Going to be a lot of work and money
    to fit the 4.6. If you want power eventually then 351C is the path forward.

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