5.3 or 6.0 into 4.8 just a few ?'s, newb needing confirmation

[1BADC10]

<div class='quotetop'>QUOTE(Red03SilSS &#064; Sep 27 2006, 02&#58;41 PM) [snapback]66823[/snapback]</div>

1. Most 6.0L have oil coolers built into the radiators, which most 5.3L and 4.8L have oil cooler block off plates. You could take the blockoff plate off your 4.8 and put it on the new 6.0.[/b]

Interesting... My Yukon came with the 5.3, which has the lines running to the auxilary cooler, to the 28" radiator, then back to the trans. I have a buddy who has an &#39;00 Silvy (RCSB) Z71 that has the same setup (stock). Could it just be different with the LQ4s? I&#39;ve always been told to run an aftermarket cooler for trans fluid. I will say that the fluid gets pretty hot under load.

[Red03SilSS]

<div class='quotetop'>QUOTE(1BADC10 &#064; Sep 27 2006, 05&#58;45 PM) [snapback]66848[/snapback]</div>

Interesting... My Yukon came with the 5.3, which has the lines running to the auxilary cooler, to the 28" radiator, then back to the trans. I have a buddy who has an &#39;00 Silvy (RCSB) Z71 that has the same setup (stock). Could it just be different with the LQ4s? I&#39;ve always been told to run an aftermarket cooler for trans fluid. I will say that the fluid gets pretty hot under load.
[/b]

Were talking about engine oil cooler here. Not Tranny

<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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Hey Man.... lets be nice...It ait all the same. I know for a fact. The LQ4 seems to be a little more complicated than the LQ9. I.E. transmission harness.