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LS Swap into '84 C-10 questions

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Old 02-22-2011, 03:32 PM
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Default LS Swap into '84 C-10 questions

I have a few questions regarding swapping a 5.3 into an '84 C-10. I have already sourced the motor mount adaptors, and the truck already has E-fans and an electric fuel pump. I have an Aeromotive pump and regulator ready to boost the pressure to LS requirements. The truck currently has a fresh 700-R4 with performance clutches and bands, shift kit, and converter, a 12 bolt with 3.73s and a not so fresh, but strong running 355. I know the LS series will physically bolt up to the older transmissions, with the exception of a bolt or two, but which flywheel and converter do I use? Also, which oil pan? The wiring I can handle, I just need to find a Harness pin-out once I get the motor and computer.

Here's a picture of the truck. It won't look like this by the end of the month, as it is getting a re-paint, and some new shoes. The Long arm kit is staying though.

Old 02-22-2011, 07:12 PM
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For schematics start here http://www.lt1swap.com/2000harness.htm

You can use any of the LS truck pans in your truck. If you retain the 700R4, you need a flexplate spacer and longer bolts found already on most 6.0L truck engines. Not sure what you will do about your kick down cable, but I'm sure someone has done it.

nice truck btw.
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