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Old 10-27-2007, 12:57 AM   #1
8door
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Question What will it take

As soon as my 68 is done, shooting for Jan Feb 08,I want to try a little something different for me any way.
I have 1990 Chevy Astro van with a 4.3 and and a 700r that I have owned since new. Was going to sell it but found the resale on these things are extremely low.
So here is my thought. I could pull the engine and seats and steering A/C lots of parts and put into a truck. Maybe a 47-54 I know there is another board for these years, but there are more guys here and I do have a 68
Anyway what will it take to transplant the engine? Drive shaft is open older trucks are closed right?
What about the TBI injection
Is there a different type of fuel delivery as in pressure?
Any ideas?
"Hewy"
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Old 10-27-2007, 06:57 AM   #2
Andy4639
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Re: What will it take

All it would take is money and a lot of time fabing. I put TPI in my 71 and I did it all myself. No kit's back when I done it in 89. Anything can be done it's how much are you willing to put into it that matter's.
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Old 10-27-2007, 07:47 AM   #3
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Re: What will it take

for one you will need an electric fuel pump, 9 to 13 PSI. this woule be best done with a rear tank swap from someone like Fuelcellguy.
I would rob all the engine wiring from the van along with the ECM.

the engine is a bolt in. that's the only easy part.
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Old 10-27-2007, 08:05 AM   #4
8door
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Re: What will it take

Quote:
Originally Posted by 68C15 View Post
for one you will need an electric fuel pump, 9 to 13 PSI. this woule be best done with a rear tank swap from someone like Fuelcellguy.
I would rob all the engine wiring from the van along with the ECM.

the engine is a bolt in. that's the only easy part.
As it is a TBI, what would be the possibility of using a regular aspirated carb? Then I would not mess with ECM and other electronic controls.
Is the transmission sift controlled by the ECM?
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Old 10-27-2007, 09:27 AM   #5
PanelDeland
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Re: What will it take

There should be someone out with a carbed manifold for the 4.3.That would save some work as long as the engine has the old style distributor and not a reluctor wheel and coil pack set-up.You can use a toggle switch for the lock up function on the 700R4.You may want to look at the weight of the truck you want to put it into.A 49-55 first series may be a good choice.Check the frame(if it's not a unibody).There are a lot of 49-55 conversions using the S-10 frame.That may be a workable solution.
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Last edited by PanelDeland; 10-27-2007 at 09:28 AM.
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Old 10-27-2007, 12:22 PM   #6
8door
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Re: What will it take

Quote:
Originally Posted by PanelDeland View Post
There should be someone out with a carbed manifold for the 4.3.That would save some work as long as the engine has the old style distributor and not a reluctor wheel and coil pack set-up.You can use a toggle switch for the lock up function on the 700R4.You may want to look at the weight of the truck you want to put it into.A 49-55 first series may be a good choice.Check the frame(if it's not a unibody).There are a lot of 49-55 conversions using the S-10 frame.That may be a workable solution.
It has the old style distributor so that will work OK. I'm not sure I understand your reference to the weight? and frame?
The Astro has a unibody, that's the only way they were made.
I can get confused : I looked at your Join the Chevy GMC Truck International and thought what is the connection with International trucks
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Old 10-27-2007, 01:00 PM   #7
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Re: What will it take

If the weight is close the performance and handling should be the same.If it were a vehicle with a frame it might be possible to swap a body on easier than swapping everything over to whatever you were building.If you use the 4.3 in a 1 ton dump you would probably hate the way it performed.If you used it in a Opel GT it would probably run like a scalded dog.
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Last edited by PanelDeland; 10-27-2007 at 01:02 PM.
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Old 10-27-2007, 04:17 PM   #8
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Re: What will it take

Since you have a donor car, the only wires on the TBI you need to change are:
constant power
switched power
ground(maybe)
and start signal.
You may cut some out that go to the instrument cluster.

It took me longer, but I have seen people do it(TBI engine swap) in one day.
I would keep it for mileage and driveability.
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Old 10-27-2007, 06:59 PM   #9
8door
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Re: What will it take

Quote:
Originally Posted by 68K20 x Drill View Post
Since you have a donor car, the only wires on the TBI you need to change are:
constant power
switched power
ground(maybe)
and start signal.
You may cut some out that go to the instrument cluster.

It took me longer, but I have seen people do it(TBI engine swap) in one day.
I would keep it for mileage and driveability.
Sounds like I can keep the TBI and locate the electric fuel pump that it now has, maybe inside the fuel tank?
Or install an external one.

Hummm ..........wonder if I can use the rear axle.
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