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ls4 cam?
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TECH Enthusiast
Joined: Dec 2006
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From: Powder Springs, GA
ls4 cam? i dont own a car with an ls4...but i was wondering if there is someone out there that makes a cam for you guys yet...be kinda cool to pull up next to a new monte or grand prix and hear it loping...like i said im just wondering
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No if you read on the top of the forum how this motor works there was cams designed for the LS6 also specific for the DOD feature in them. I personally would not stick a ls2 or what ever cam in there, if you have the wrong cam you can say by by motor and well to replace it you are looking at $4000 us for a used one.
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Joined: Jan 2007
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From: LITH, IL.
Originally Posted by Nacho SS
Isn't our block shorter requiring different intake/exhaust positions on the cam?
Originally Posted by Area47
the crank is shorter. thats it.
Well FWIW, couldn't you just switch out the lifters to Ls2 spec ones? And what is stopping us from installing a Fast 90/90?
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From: K.C.
Originally Posted by Nacho SS
Yeah that's it. I couldn't remember what was shorter, crank or cam.
Well FWIW, couldn't you just switch out the lifters to Ls2 spec ones? And what is stopping us from installing a Fast 90/90?
Well FWIW, couldn't you just switch out the lifters to Ls2 spec ones? And what is stopping us from installing a Fast 90/90?
it's the cam.
you can swap the lifters out, pull all the dod crap off, shut the codes off with hpt. and have fun.
Originally Posted by scarlett
The LS4 is an LS6 block sliced down by 13mm I believe with LS2 heads.
with short crank snout, the ls4 and ls6 block are 2 diff. castings.
ls4 is based on 4.8/5.3 iron block but cast in alloy with pressed in sleeves
On The Tree
Joined: Feb 2007
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From: MD
i think what u mean is the bore is 3.78 with ft pistons and 3.622 stroke
with short crank snout, the ls4 and ls6 block are 2 diff. castings.
ls4 is based on 4.8/5.3 iron block but cast in alloy with pressed in sleeves
with short crank snout, the ls4 and ls6 block are 2 diff. castings.
ls4 is based on 4.8/5.3 iron block but cast in alloy with pressed in sleeves
The 5.3L LS4 shares the basic architecture of the 6.0L LS2. This includes an all aluminum block, six-bolt main bearing caps, deep-skirt cylinders, and a structural oil pan. It has the 243 casting LS6 heads with LS1 valve springs, which are good for 6200-6300 rpms.