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Will this engine swap work?

joshone

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Jun 1, 2005
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Inglewood, California
Will a 350tbi from an '89 blazer drop right in to a '73 k10? Or will i have to make any modifications? Both vehicles have th350s.
 
If you plan to run the injection then you'll need to remove the wiring harness and ECM but otherwise it will swap into the 73 no problem. You'll need to address the fuel pump issue but that's not a big deal.
 
you will need a 87-95 intake for a carb....or you could slot an old one with special washers, but doesnt look that great and could leak if its not done right

most factory 89 blocks still had the fuel pump provision, but double check to make sure. if you have a plate over fuel pump boss you have a fuel pump provision

you will need the 89 flywheel or flexplate also
 
wouldn't it be easier to get a tank and sender from a fuelie K truck......don't you need a return back to the tank too? don't mind me, i'm learning about TBI now too.
 
Yes, that would be the easiest way, but it can be done with the stock tank using an external pump.
 
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