ran into a snag-help please!

SWAPPING IN A 305, 350 OR ANY OTHER SMALL BLOCK, POST THEM HERE.

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markmitchinnh
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ran into a snag-help please!

Post by markmitchinnh » Sat Jul 07, 2012 3:34 pm

Ok I am doing the 4.3 to 5.7 swap and on the pass side cylinder head there is a sensor on the V6 and on the V8 there is a plugged hole (threaded) I took the plug out and tried the sensor but its to small. Anyone know what this sensor is and is the V8 sensor bigger? Thanks to anyone with info on this. Mark
Recently bought a 1989 Astro RS from Florida. Replaced stock engine witha 1997 5.7 vortec with TBI and replaced transmission with rebuilt 700R4 with mild shift kit.
Bought on Monday the 16th of April 2012

markmitchinnh
I sleep in my van
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Re: ran into a snag-help please!

Post by markmitchinnh » Sat Jul 07, 2012 4:42 pm

I figured it out , its a temp switch for the temp gauge.
Recently bought a 1989 Astro RS from Florida. Replaced stock engine witha 1997 5.7 vortec with TBI and replaced transmission with rebuilt 700R4 with mild shift kit.
Bought on Monday the 16th of April 2012

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Mr_Roboto
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Re: ran into a snag-help please!

Post by Mr_Roboto » Sun Jul 08, 2012 3:52 am

buy an adapter for the pipe, should be easy to source. If I remember correctly, I had to buy one when I did the swap. If you have the sensor off the 350, it will be compatible if it plugs into your harness which it should (they pretty much all use a spade terminal)

markmitchinnh
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Re: ran into a snag-help please!

Post by markmitchinnh » Sun Jul 08, 2012 10:53 pm

the sensor is on the other side on the 350 so I just had to put a threaded plug into the hole on the 350 head. Thanks for your assistance Mr_ Roboto
Recently bought a 1989 Astro RS from Florida. Replaced stock engine witha 1997 5.7 vortec with TBI and replaced transmission with rebuilt 700R4 with mild shift kit.
Bought on Monday the 16th of April 2012

markmitchinnh
I sleep in my van
Posts: 619
Joined: Wed Oct 13, 2010 9:07 pm
antispam: No
How many wheels are on an Astro van? (4): 4
Location: Barrington NH
Contact:

Re: ran into a snag-help please!

Post by markmitchinnh » Sun Jul 22, 2012 9:37 pm

Anyone know which top radiator hoses will work? the V6 hose does not fit.
Recently bought a 1989 Astro RS from Florida. Replaced stock engine witha 1997 5.7 vortec with TBI and replaced transmission with rebuilt 700R4 with mild shift kit.
Bought on Monday the 16th of April 2012

Kidhauler
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Re: ran into a snag-help please!

Post by Kidhauler » Mon Jul 23, 2012 12:20 am

V6 hose should work if you cut a couple inches off I beleive.
1999 Safari Touring edition.
trailer tow pack with a 3:73 posi
Bucket bench seats, Rear heat, Rear Airconditioning.
teal green
300 000 kms
AirRide air bags in the rear to fix soft stock suspension.
Onboard aircompressor to make it all work nice.

markmitchinnh
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Joined: Wed Oct 13, 2010 9:07 pm
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How many wheels are on an Astro van? (4): 4
Location: Barrington NH
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Re: ran into a snag-help please!

Post by markmitchinnh » Mon Jul 23, 2012 2:28 am

it does not fit on the water neck on top of intake manifold, The V8 intake water neck is bigger around then the V6 component.
Recently bought a 1989 Astro RS from Florida. Replaced stock engine witha 1997 5.7 vortec with TBI and replaced transmission with rebuilt 700R4 with mild shift kit.
Bought on Monday the 16th of April 2012

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