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Thread: Engine swap question
02-02-2010, 04:27 PM #1
Engine swap question
I have a 1985 c-10 2wd with a 4.3l v6 4bbl and a th400 long bed.
I want to put a purchased 1989 5.7l TBI engine from a 1 ton truck into my C-10.
My intention is to convert the TBI to 4bbl and put an HEI distributor in it.
Does anyone here have any recommendations as to what manifold/carb combo will work?
Do I have to change the distributor drive gear for a softer one since the TBI motor is a roller motor?
Am I missing any potential issues with this swap?
Thanks for any help you can offer.ERIK M. ASHER
1973 CHEVY EL CAMINO SS
02-03-2010, 09:08 AM #2
As to the manifold/carb combo, a quick and easy combo is the Edelbrock 1406 carb and 2101 intake manifold. The calibration kit you need for the carb is #1487, but I can't swear to that.
On the distributor shaft gear, yes, absolutely get a bronze gear. They're cheap and readily available.
One more issue you may run into is your torque converter. It might be a good idea to switch that over to a bit more heavy-duty model. Some of the 4.3's use a smaller converter.
02-04-2010, 02:41 PM #3
Just a reminder, that you won't have a mounting location on the 5.7 block for the mechanical fuel pump, since that block was intended for TBI. You'll need to get an external fuel pump made for feeding a carb.Patrick
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