amateur mechanic - 1984 base MC gets 5.3L/4L60e

MJScarangella

Greasemonkey
Sep 24, 2020
153
43
Pennsville, NJ
I've been asking a lot of questions on this site and lurking for a year. I was too lazy to work hard to save money to do this in high school like my friends did. It's a good thing I waited because the technology got a lot better over the last 30 years. I got $10,000 worth of parts going into this Monte Carlo. Be patient with me and wish me luck. I plan to get this bad boy on the road again in 3 months. 5.3 L crate engine junkyard salvage transmission and accessories from 2004 Silverado.
 

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MJScarangella

Greasemonkey
Thread starter
Sep 24, 2020
153
43
Pennsville, NJ
I just took off my exhaust and this vacuum actuated valve is at the exit of the passenger side header. I'll go look it up in the manual, but if you want to beat me to it, what is it?
 

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MJScarangella

Greasemonkey
Thread starter
Sep 24, 2020
153
43
Pennsville, NJ
I got the electrical all disconnected today and all the hoses off and drained coolant from the engine block and didn't make a mess. A company upstate wants my catalytic converter for $200 w/free shipping.... that sounds like a great deal; there must be a lot of platinum in it. One more 2 hour session of teardown and I should be ready to pull the engine/trans; had to quit to placate wife this evening.

It's amazing all the emissions contraptions on this motor. I can't believe GM was able to sell a reliable car with all of this claptrap pulling vacuum from here, and injecting air there... and the engine won't run right without all that chit feeding back into the ECM.

What should I do with the V6 and THM250 when I get it out of there? It's only got 22,000 miles on it. Does it have any value? Time is not an issue so perhaps I could someday put it into a roller... thoughts?
 

64nailhead

Goat Herder
Supporting Member
Dec 1, 2014
2,909
113
Upstate NY
See my last post. Maybe $50 at the scrap yard. You have an extremely undesirable powertrain. Maybe if you sit on it for 20-25 years, then someone will be interested giving you $100 for it. Better than a saving account will do, but you have to store it for the next couple of decades.


Kidding of course about all of it other than see my last post.

There a couple of wires in your current harness that are worth saving. The 12 gauge pink and purple. And also the two reds that had a fusible link on the end. I've re-assigned them 3 times now without issue. They come out of the firewall pass through below the wiper motor.
 
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MJScarangella

Greasemonkey
Thread starter
Sep 24, 2020
153
43
Pennsville, NJ
See my last post. Maybe $50 at the scrap yard. You have an extremely undesirable powertrain. Maybe if you sit on it for 20-25 years, then someone will be interested giving you $100 for it. Better than a saving account will do, but you have to store it for the next couple of decades.


Kidding of course about all of it other than see my last post.

There a couple of wires in your current harness that are worth saving. The 12 gauge pink and purple. And also the two reds that had a fusible link on the end. I've re-assigned them 3 times now without issue. They come out of the firewall pass through below the wiper motor.
Thanks for the info about the four wires.
 
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MJScarangella

Greasemonkey
Thread starter
Sep 24, 2020
153
43
Pennsville, NJ
Does anybody want to sell me 200-4R column shifter linkage with frame pivot bracket?

I thought I'd be able to use my TH350 column shifter for the 4l60e, but am finding it may not be that simple. I may/not need to replace or extend the shift linkage.

If I must extend it the shifter linkage, no problem (except getting it out of the firewall).

I see lots of posts about this - some say the 3 speed shift linkage will work fine, some say too short. Some say I need the 200-4R frame pivot bracket.

Of course I'll figure it out when I get in there - just fussing ahead of myself... I've been somewhat worried about the gear shift all along; most people don't use column shift.

Can I take the shifter selector detent plate out of the column and rely on the solid 'ka-chunk' of the transmission as the gear selector is moved? I have a dakota digital PRNDL indicating instrument that will go to the instrument cluster.
 
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