4BT Cummins-Swapped GMC Square Body!

Is this the “holy grail” of diesel swaps? One thing is for sure, with a 6-speed manual, compound turbos, and front coilover conversion, you won’t see many like it.

We’d like to extend a special thank-you to LinCo Diesel Performance for inviting us out, and giving us a behind the scenes look at their machine shop.

Keep up with FASS Motorsports here: https://www.instagram.com/fassmotorsp…

Thanks for watching!

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