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Old 02-21-2008, 07:53 PM
2000CAYukon 2000CAYukon is offline
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Re: What year/s was the vortec engine offered in the Yukon 2door?

96 was the first year of the Vortec engine. From 96 to 99 (some 2000s with older body styles) have the Gen I block. After that the Vortec is based on the Gen III block (4.8, 5.3 and 6.0)

The biggest difference is the L31 heads, a roller cam, central port injection and about 50 HP better than the TBI engines (speaking about the 96 - 99 Vortec).

//2000CAYukon
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