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Re: LY6 Shortblocks...New
The Trailblazer SS comes with an aluminum LS2 not a LY6 iron block.
As per GM Vortec engine from Wikipedia, the free encyclopedia;
Generation IV LY6
The Vortec 6000 LY6 is a Generation IV small block V8 truck engine. It shares the same bore and stroke as its LQ4 predecessor, and also features variable valve timing. 4.0 inch bore 3.622-inch (92.0 mm) stroke
LY6 applications:
2007–present Chevrolet Silverado HD
2007–present GMC Sierra HD
2007–present Chevrolet Suburban 3/4 ton
2007–present GMC Yukon XL 3/4 ton
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