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Old 05-09-2002, 11:46 PM   #1
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Default OEM GM Cam Specs

Just posting some info as I have recieved quite a few emails regarding stock cam specs...I have some "holes" in this information and if anyone would like to add I will update and modify.

1999 LR4/LM7 Cam
Part #12560966
lift (e/l) .466/.457"
centerlines(e/i) -118/113
separation 115.5 deg
duration @ .050"(e/i) 193/194
duration @ lash (e/i) 328/328
basecircle

2000-2001 LR4/LM7 Cam
Part # 12560967
lift (e/i) .466/.457"
centerlines(e/i) -112/116
separation 114 deg
duration @ .050"(e/i) 193/194
duration @ lash (e/i) 328/328
basecircle

2001-2002 LS1/LQ4/LQ9 cam
Part #
lift (e/i) .468/.478"
centerlines(e/i)
separation 115.5 deg
duration @ .050"(e/i) 198/208
duration @ lash (e/i)
basecircle 19.7mm

2001 LS6 Cam
Part # 12560950
separation 116 deg
lift (e/i) .525/.525"
duration @ .050"(e/i) 207/217
duration @ lash (e/i)
basecircle

2002 LS6 cam
Part #
separation 117.78 deg
lift (e/i) .548/.542"
duration @ .050"(e/i) 277/284
duration @ lash (e/i)
basecircle

1998 LS1 Hotcam
Part #
separation 112 deg
lift (e/i) .525/.525"
duration @ .050"(e/i) 217/227
duration @ lash (e/i)
basecircle

<small>[ May 10, 2002, 08:34 AM: Message edited by: oxidizr ]</small>
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Old 05-10-2002, 06:05 AM   #2
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Default Re: OEM GM Cam Specs

Thank You. Very helpful to have in the database.
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Old 05-10-2002, 08:20 AM   #3
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Default Re: OEM GM Cam Specs

I have the 2001 LQ4 engine and as you know and just changed cams.. We measured the lift and its only .468 intake and .478 exhaust.. The info I got from Full FLoater is that the LQ4/LQ9 is the 2002 F body cam .197/.208 .468/.478 W/115.5 LSA.. My measurements back up the lift so far..
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2004 Mercedes Benz AMG CL55, 1/4 mile time 11.22@123.8 mph, 1.68 sixty. 180.5 MPH Texas mile ASP 185mm pulley, dyno tune by Eurocharged, 82mm TB, Aux.Garrett H/E, Meziere I/C pump, filters,265/40/18 MT ET streets.

Former 99 Firehawk 10.43@129.8mph NOS stock block & 10 bolt . 11.27@118.42mph NA. (sold 2001)
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Old 05-10-2002, 08:36 AM   #4
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Default Re: OEM GM Cam Specs

Here is the part number for the 01/02 LQ4/ LQ9 6.0 litre motors.. # 12561721.. I feel confident on this part number and cam specs but still not 100% sure if the number is the same as the 2002 f body cam.. I have a *1791* stamped on the end of my cam..Anyone know what a 2002 F body cam has stamped on it?
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2004 Mercedes Benz AMG CL55, 1/4 mile time 11.22@123.8 mph, 1.68 sixty. 180.5 MPH Texas mile ASP 185mm pulley, dyno tune by Eurocharged, 82mm TB, Aux.Garrett H/E, Meziere I/C pump, filters,265/40/18 MT ET streets.

Former 99 Firehawk 10.43@129.8mph NOS stock block & 10 bolt . 11.27@118.42mph NA. (sold 2001)
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Old 12-02-2009, 02:44 PM   #5
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old thread but id like to see the new gm cam specs please
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Old 12-02-2009, 02:44 PM
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