65 barracuda nightmare

Hey everybody stuff only found how to make a post so I have a 1965 Plymouth Barracuda it originally came with a slant 6 and we are trying to install a 360 V8 into the engine bay where can I find the motor mounts to do the Slant six to the v8 conversion because the motor mounts that I found very short and they are not high enough for the big bigger motor for the headers to clear other things any information would be greatly appreciated I would greatly greatly appreciate it I have the VIN number I will post the picture of the VIN number with this post to give you an idea of what exact car I have again any kind of information I've been on the hunt for about a a few months

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