Project ls swap c10

[BMCSean]

Leave it here and I'll plasti dip It for you while you're gone. Pink?

[Blackpony]

Actually I plan to drive it if I can get the tune ironed out tonite or tomorrow.

[Blackpony]

Been driving the truck for a week now. Runs really good, and sounds pretty sweet! Throttle response it nice and crisp, power is really smooth and get to speed quick! took it to oklahoma to visit my uncle for his b-day. With the tune not being perfect, and pulling 2600-2700 rpms i averaged 18.78 mpg. Pretty happy with that. Hoping once the tune is finished and I can get an od trans put in, hoping to see 20+ mpg..

[46Tbird]

That's a cool truck. It's always been one of my favorite bodystyles, but they need more guts than the 4.3/305/350s they came with. Nice job dude!

[Blackpony]

Thanks man. Im not completely happy with how it looks underhood. There are a few wires that I should have incorporated into the wiring harness loom but now are just ziptied along the loom but all in all its easy to work on should i ever have a problem. I'm ready to get the tune finished up and lay into it to see how it runs! Im hoping the th350 does not shit the bed! haha

[naynay]

what trans is behind it? oh and did you upgrade the dowel pins?

[Blackpony]

It has the original th350. No upgrade on the dowel pins.

[naynay]

nice! so ~2700rpm @ 70?

[Blackpony]

2700 rpm at around 75. The trans is a th350c, I was told that the converted will lockup automatically but was also told that I needed to either wire a switch in or buy the b&m lockup box. I'm not sure so i need to look into a bit more, if its not locked up then that could be about 200 ish rpms I could drop once locked up. I haven't messed with th350's, so I'm not familiar with how these work.

[Woods Racing Transmission]

2700 rpm at around 75. The trans is a th350c, I was told that the converted will lockup automatically but was also told that I needed to either wire a switch in or buy the b&m lockup box. I'm not sure so i need to look into a bit more, if its not locked up then that could be about 200 ish rpms I could drop once locked up. I haven't messed with th350's, so I'm not familiar with how these work.

You could use the B&M controller they are nice allowing you to select what Speed you would like it to lock up the converter. Summit has them for around 170 bucks, kinda $$$.

You could also cheep out and just use a toggle switch that supplies 12 volts to the transmission and switch it on when you are on the hwy.

If your 350 takes a shit or you need some help figuring out the LU part let me know.

[46Tbird]

Thanks man. Im not completely happy with how it looks underhood. There are a few wires that I should have incorporated into the wiring harness loom but now are just ziptied along the loom but all in all its easy to work on should i ever have a problem. I'm ready to get the tune finished up and lay into it to see how it runs! Im hoping the th350 does not shit the bed! haha

Good luck!

I think I've shown you this before, but here's my buddy's '84 that we swapped a 5.3 into. These pictures are pretty old; it looks real tidy under there now. The Vortec intake cover hides a lot of sins.

He used a stock harness and trimmed a lot of it out. Mike (fitzwell) converted it for use with a cable throttle. It starts and runs pretty nice, but he still hasn't run it through any normal heat cycles. He's being weird about it being tagged/inspected. lol

He has added an a/c compressor to it since these pics were taken. It's an aftermarket unit and mounts up high by the intake elbow.

[Blackpony]

You could use the B&M controller they are nice allowing you to select what Speed you would like it to lock up the converter. Summit has them for around 170 bucks, kinda $$$.

You could also cheep out and just use a toggle switch that supplies 12 volts to the transmission and switch it on when you are on the hwy.

If your 350 takes a shit or you need some help figuring out the LU part let me know.

Im glad a trans guy stepped in. Am I correct in saying that since no wires are going to my trans right now that my converter is not locking up? What pins on the connector do i need to hook up for the lockup feature? I have been looking at cheap ways to make the converter lockup as I do plan to install a 4l60 once funds allow.


What would you charge me for a 4l60 btw with a 2200 rpm converter for an ls1?

[Blackpony]

Good luck!

I think I've shown you this before, but here's my buddy's '84 that we swapped a 5.3 into. These pictures are pretty old; it looks real tidy under there now. The Vortec intake cover hides a lot of sins.

He used a stock harness and trimmed a lot of it out. Mike (fitzwell) converted it for use with a cable throttle. It starts and runs pretty nice, but he still hasn't run it through any normal heat cycles. He's being weird about it being tagged/inspected. lol

He has added an a/c compressor to it since these pics were taken. It's an aftermarket unit and mounts up high by the intake elbow.

That looks good! One day I plan to take the fender aprins out and repaint them along with the whole under hood. Maybe at that point I'll remove the harness and redo it to be a little bit neater. What kit did he use for the a/c? I have been looking at a couple different brands. I might just end up making my own. Seems pretty simple.

[bcoop]

I really, really, really want to do this with my 83. I'd daily it if I could.

[Blackpony]

Its a very simple swap. If you can afford an aftermarket harness its even easier. It could hoestly be done in a weekend if you had all the parts. The motor bolted in with the trans, accessories bolted up and I was able to reuse the ps hose. heater hoses are simple, radiator hoses are simple, and with a standalone harness, its just a couple wires and your done! a couple adapters and the factory gauges will work, then just a tune and your driving... Easiest swap i have done. The most difficult part was building the harness. I started with a truck harness and modified it to route to the back of the engine for a cleaner look.