Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Anyone swap a medium duty truck

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Old Jan 7, 2026 | 04:57 PM
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Default Anyone swap a medium duty truck

I have a 86 gmc C6000 I would like to 5.3 swap. Truck has 350 with a 5 speed that I believe is a Clark from the rpo code (m56) with a single speed rear end. What clutch and engine mounting do I need.
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Old Jan 7, 2026 | 11:21 PM
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Originally Posted by Ls_116
I have a 86 gmc C6000 I would like to 5.3 swap. Truck has 350 with a 5 speed that I believe is a Clark from the rpo code (m56) with a single speed rear end. What clutch and engine mounting do I need.
Swap an 8100, you will be far happier.
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