71 c10 swap. Picked up a 5.3 200k miles everything except trans???

[chuckTN6772]

Came across a wrecked 2001 Silverado 5.3 with everything except the transmission. Going to install in my 67 stepside. Is there anything I should look out for on an engine with 200k miles and also any ideas on a rough estimate on cost for a transmission

[my kids toy]

Depending on what your paying for the motor, I picked up a rusty driveable 99 2 wheel drive truck for $700 and drove it home, I pulled the engine and trans, it had 250,000 miles, I had all of it rebuilt and engine once torn apart was in good shape and would have went another 100,000+ miles
A trans might cost you $200-$500 and if it needs a rebuild then another $1700-$1900 from a qualified trans shop.

[chuckTN6772]

Thank you for the response. I got the truck for free so only $ will be to buy a transmission and get the ecm tuned

[mongocanfly]

I would rebuild engine if it has 200k on it...you can actually use your current trans if you wanted to...(not sure what you have)...you can get a remain from oreillys....
.if you want a trans like the 4l60 you'll need the controller for that....but not sure exactly because all mine are manuals...

[SBTork]

I'd check car-part.com and keep an eye on craigslist. You could buy any 4L60E in need of a rebuild for $200-$400, then have a transmission shop go through it for $700-$1,200 depending on what you have done, etc. A salvage yard like LKQ also offers reman transmissions for pretty reasonable too.

[chuckTN6772]

Thank you all for the info. I currently have a 700r4 installed in the truck. What does it take to run a 700r4 with an LS? Adapter plate, different torque converter or torque converter bolts?

[mongocanfly]

Here's some info on a 700r4 behind a LS.....
https://ls1tech.com/forums/conversio...-ls-700r4.html
https://www.corvetteforum.com/forums...o-a-700r4.html

[truckdude239]

200k is nothing the 5.3 in my tahoe went 370k before it died just reseal it and let it ride my suburban as 220k still running strong