besides a few rad hoses.. I don't think anything..
1jz head fits on the 2jz lower.. called a 1.5jz.
Now I don't know for certain, but I don't think anything mechanical from the Jz's are compatible with the 7m.. It's a whole new power house platform.
also if swapping from a 7m to a jz the vvti parts are harder to come by then the standard 1jz twin turbo.. even 2jz parts are ezier to get then the vvti. at least that's the scuttlebutt
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