B & 3b interchangeable? (1 Viewer)

Joined
Feb 24, 2005
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663
Location
boulder, co
Hey all,

does anyone happen to know if a b engine & a 3b engine are directly interchangeable? Can you just pull a b & stab a 3b right in there & it all bolts up, or is it more complicated than that?

this would be an 80 B & an 83 or 84 3B.

thanks for any insights!
 

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