:nutz: Whats the difference between the LQ9 and LQ4:nutz:

[Zick]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jul 3 2006, 12&#58;46 PM) [snapback]57025[/snapback]</div>

A full floating rod means that the piston pin isn&#39;t pressed into the small end of the piston, it slides through freely and rides on a bushing instead. The older GenIII engines have the piston pin pressed into the rod and the piston acts as the bearing for the small end of the rod. The full floating piston pin requires snap rings or wire ring groove cut in the piston pin bores to retain the rod pin. If there are machining problems when cutting the groove, pins have been known to walk out the bore and gouge the cylinder wall. That is a very rare thing to happen, though.
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Isn&#39;t that the same thing as floating wrist pin?

[RedHeartbeat]

Yep, the previous design was not a floating pin.

[Zick]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jul 3 2006, 01&#58;55 PM) [snapback]57030[/snapback]</div>

Yep, the previous design was not a floating pin.
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According to the article I posted eariler, the LQ9 6.0 did have a floating pin and I know that article was made way before 06&#39; too.
Not trying to argue or be a dick, just trying to get the facts.

[Jamest]

THE LQ9 HAS HIGHER COMPRESSION AS WHERE THE LQ4 DOES NOT. THE ROD ARE ALSO BEEFIER IN THE LQ9 VS THE LQ4. ALSO, I THINK THE CAM IS A LITTLE DIFFERENT? THE 4L80E TAKES MORE HP TO TURN IT THAN THE 4L65E. THE LQ4 IS A GREAT TURBO/SC MOTOR YOU CAN PUT FORGE SLUGS IN IT AND GOOD HEADS ON IT, RUN UP TO 15PSI WITH NO PROBLEM.

JAMEST <div class='quotetop'>QUOTE(Lethalyoyo &#064; Jun 25 2006, 03&#58;26 AM) [snapback]56204[/snapback]</div>

I would like to know the difference between the to because me friend that had a vortec max gets 18MPG and my 1500HD 6.0 0nly gets 10mpg at the best
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