Stock V6 transmission in 1987?

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buddy48

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Buddy
Truck Year
1987
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V10
Engine Size
350
Alright guys. I'm still trying to buy my first square body and found one that originally had a V6 (262) in it but it has been replaced with a 350. The question is would the stock V6 transmission handle the 350 with no issues? I have no clue if the transmission was replaced the same time as the engine. I'll find out tomorrow.
 

74propu

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florida
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austin
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1974 1980 1986
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c10s/b c10 s/b c10l/b
Engine Size
5.3 / ?/454 tbi
If it is a automatic it is th375 if it is a 3 speed or a 700r4 if it is a 4 speed overdrive and yes they will work with the 350
 

buddy48

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1987
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Gotcha. So my research was somewhat correct on the 700r4. Didn't look into the 375. The data I saw said the 700r4 or the th400. In regards to managing it I was wondering about ratios but I guess it doesn't matter if there wasn't another option. If I had the rpo codes I know but I don't. Thanks for the info!
 

74propu

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1974 1980 1986
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c10s/b c10 s/b c10l/b
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5.3 / ?/454 tbi
Ok is it a 3 speed or a o/d 4 speed???
 

buddy48

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Ok is it a 3 speed or a o/d 4 speed???
Don't know yet. Going to look at it tomorrow. Just doing all my homework and learning as much as I can to try to minimize making a mistake.

This truck seems to be in good shape in regards to the body, but of course we'll see. It's an 87 that had the v6 swapped out. Guy is asking $3500. I'm not sure honestly how to value these trucks. I've seen such a range of prices.
 

74propu

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florida
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austin
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1974 1980 1986
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c10s/b c10 s/b c10l/b
Engine Size
5.3 / ?/454 tbi
I see now . Where in ga are you I am about a hour south of the border
 

buddy48

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I'm in Augusta, Ga.
 

Camatruder

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On 3th gen camaros the V6's and V8's TH700R4 are the same tranny's but they have different bolt patterns. Don't know about our squares though.
 

buddy48

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1987
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V10
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350
With the V6 to v8 swap will there be a change in motor mounts etc? What I see online it mentions different frame perches for the v8.
 

74propu

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1974 1980 1986
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c10s/b c10 s/b c10l/b
Engine Size
5.3 / ?/454 tbi
yes have to use v8 frame mounts and engine mounts as well
 

buddy48

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1987
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V10
Engine Size
350
74propu...Thanks for all the help. Its great to find a forum where the folks are willing to help the rookies!
 

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