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Old 11-27-2018, 01:25 PM   #1
1971Stepside
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Can I start it now?

I am hoping to fire this engine sooner rather than later. Once I have the wiring, fuel, cooling, etc. in place can I start it? My question is, what do I have to have to at least start the motor while the build continues? My thought is once I have the cooling system installed, fuel system installed, stand alone harness installed, battery, etc. I should be able to fire it. I'm a long ways out on having the in cab harness, exhaust, gauges, etc. Hope this make sense on what I am trying to do.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 11-27-2018, 02:38 PM   #2
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Re: Can I start it now?

Wire, fuel,cool...you can start it if you use the correct wires from the engine harness...you need constant power,switch on power and all the grounds....don't forget the power steering pump...I would advise hooking up some gauges so you can see what's going on..
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Old 11-27-2018, 03:26 PM   #3
1971Stepside
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Re: Can I start it now?

Sounds as simple as I was thinking. Just wanted to make sure there wasn't a gotcha in there that I needed to be aware of.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 11-27-2018, 03:51 PM   #4
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Re: Can I start it now?

Has your ecm been flashed?
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1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
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Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
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Old 11-27-2018, 04:03 PM   #5
1971Stepside
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Re: Can I start it now?

At the moment no, but I will have it flashed to remove the VATs etc. and then once I am able to dyno the truck I will take it to them to set it up correctly. I just want to be able to keep the oil flowing over the next 18-24 months...or, until I hit the powerball.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 11-28-2018, 10:00 AM   #6
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Re: Can I start it now?

You'll probably need to connect the air system as well. I believe The PCM will need the MAF. Others on here may correct me.
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Old 11-28-2018, 10:14 AM   #7
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Re: Can I start it now?

Turn the VATS off, hook up the harness and fuel system and it will start. I start them on the garage floor all the time this way. Take the belt off so power steering fluid doesn't go all over though. You dont need coolant if you aren't going to let it run for very long.
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Old 11-28-2018, 11:53 AM   #8
1971Stepside
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Re: Can I start it now?

Thanks guys. I will have power steering hooked up, but not the prop valve. I shouldn't get the squirts if no pedal is applied.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 11-29-2018, 11:14 AM   #9
paul mora
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Re: Can I start it now?

Trans lines?
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Old 11-29-2018, 06:07 PM   #10
1971Stepside
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Re: Can I start it now?

Yes, I will have trans line hooked up to the radiator before turning it over.
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021.

"I can't complain, but sometimes I still do. Life's been good to me so far."
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Old 12-02-2018, 10:55 AM   #11
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Re: Can I start it now?

Spark, fuel, and compression, that's all you need (and to get that, proper harness connections to the LS ECM). If you want to RUN the thing then finish it properly, don't be in a rush. But if you just want to fire it up for a few seconds, you can do that without cooling. Heck you can do it without exhaust.
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