Question about 2003 Chevrolet Suburban 1500
3 choices, 4.8L, 5.3L, or 6.0L. All small blocks Generation III GM Vortecs. I need the RPO code from the sticker inside the glove box to determine which you have or the emmisions sticker on the fan shroud under hood should label what the engine size is. They all look the same but the 6.0 L has cast iron heads. All others are aluminum, Hope this helps
Posted on Oct 04, 2010
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Posted on Jan 02, 2017
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