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LS 4 Question??

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Old Sep 5, 2005 | 04:10 PM
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Default LS 4 Question??

Does anybody know if the LS 4 is compatible with parts from other ls series engines, specifically heads and cam. I am thing about buying a Grand Prix GTX to compliment my rip snortin' trans Am. thanx.
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Old Sep 5, 2005 | 07:40 PM
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Its a 5.3L aluminum LS engine. Same thing really externally.
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Old Sep 5, 2005 | 07:47 PM
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but the displacement on demand dictates a unique block I believe
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Old Sep 5, 2005 | 09:11 PM
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Originally Posted by Blaquehawk99
Does anybody know if the LS 4 is compatible with parts from other ls series engines, specifically heads and cam. I am thing about buying a Grand Prix GTX to compliment my rip snortin' trans Am. thanx.
LS4 comes in the Grand Prix GXP, and new Monte SS and Impala SS. Wasn't the GTX an SLP package offered on GP's during the last body style?
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Old Sep 7, 2005 | 05:55 PM
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True the block is the same, well sort of. I remember reading some where that the LS4 block is just a tad bit short to accomadate front wheel drive. What I'm asking is would the cam shaft and intake and heads be shorter as well? Or will I be able to get parts from the same sources. Does anyone know a LS4 specific web site or thread?
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Old Sep 7, 2005 | 06:30 PM
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I'm sure the Grand Prix websites will pick up on them. But for general tech, it's a Gen-III small block just like the LS1. Most of the tech here will work on it.
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