<div class='quotetop'>QUOTE(RedHeartbeat &#064; Sep 27 2006, 06&#58;28 PM) [snapback]66864[/snapback]</div>
4.8, 5.3 and 6.0 engines will interchange with the exception of the 1999-2001 6.0L which had a thicker flange on the crankshaft. Buy a 2002 or newer 6.0L and everything will swap from your 4.8L. Be prepared to get your transmission beefed up. Also, budget some money for a tune since your 4.8L tune will work but it will run very lean. Nelson Performance can set you up with a tune for the 5.3 or 6.0 engine. Use your stock 4.8L harness unless the 5.3 or 6.0 engine comes with a 4L60E harness.

Red, you guys just did everything wrong when you swapped that 4.3L out for the 6.0L.
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Reds right my 2000 6.oL has a thick flange on the rear of the crank. GM had a brain fart when they did this. It will all fit as Red has mentioned.
Good Luck&#33;

Jamest