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580-720. are all exhaust manifolds interchangable?

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derek

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title says it all. i had 3 or 4 complete motors in pieces laying around. said to self i am not gonna need all this stuff. i scrapped it. now when pulling out the GTI to get it ready for summer i broke bolts in manifg\old. found cheapy on ebay from white 93ish 587. bought it. then i look for gaskets and see 580 and 650-720 listed as seperate. did i just waste 25 bucks? thanks. haven't been here in a while. driving a 27 foot wellcraft nova around mostly these days...at 4 bucks a gal and 1.5 gals per mile the hatteras makes a nice summer house...
 
I don't think it will work.

First... there were 2 different 587 engines. The yellow version didn't have a water jacket from the block to the manifold. So... that one won't work. But... as I recall... even the white engine has a different port size.

If you have the parts sitting around... try it, and see if it lines up.


Generally... the 657 and 720 exhaust parts were known to interchange.
 
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