LQ4 or LQ9

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08-24-2009, 01:55 PM

2500HDAndy

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LQ4 or LQ9

Somebody give me some help, Whats the Difference i can always find heads for the LQ9 but no the LQ4 is it all the same?

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08-24-2009, 02:14 PM

nightrunner

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the heads are the same. should all be the #317 castings

and if you are talking aftermarket heads, they are the same then.

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08-24-2009, 03:10 PM

Mangled03gmc

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All are the same heads 317's. Lq4 has dish pistons and the 9's have flat tops( a little bit more comp) Other then that pretty much the same

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