Our GMT400 Suburban 10.3L Big Block Build Begins! Uncle George Will Never Be The Same (632 BBC) @Stapleton42
Our GMT400 Suburban 10.3L Big Block Build Begins! Uncle George Will Never Be The Same (632 BBC)  @Stapleton42
Uploaded January 2022 | Updated September 2026, 3 days ago
The time has finally come! Last year you may have seen us do some videos at the BluePrint Engines facility where they make these epic crate engines. This one is their king of the lineup. 632 cubic inches of tall deck big block chevy making 840hp with daily driver reliability. We are putting it in our 4x4 1993 GMC Suburban we call Uncle George! This is the first video in the build series where we will document EVERYTHING from start to finish! First thing is first...we need to take the worn out original tbi 350 and half melted transmission outta here!

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Our GMT400 Suburban 10.3L Big Block Build Begins! "Uncle George" Will Never Be The Same (632 BBC)

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