LS9 Camshaft Installation in LS3, L99, LS7, LS2, LS6 or LS1

[Tim@Lingenfelter]

The 2009-2010 LS9 ZR1 camshaft is a perfect choice for LS supercharged or turbocharged engines. The LS9 camshaft is 211/230 @.050 valve lift and .558/.552 lift with 1.7 rockers and a 122.5 centerline.

Before the LS9 was introduced LPE used the GT7 camshaft that John Lingenfelter designed in 2001 to be the perfect camshaft for boosted LSx applications. The GT7 was 208/230 @.050 valve lift and .554/.546 and 121 center line this camshaft produced excellent power and still had great street driveablity. In 2009 GM introduced the LS9 in the C6 ZR1 supercharged Corvette engine. After comparing specifications on the camshaft and finding out how economical this is due to it being mass produced Lingenfelter discontinued the GT7 and started using the LS9 in supercharged or turbocharged applications.

The LS9 camshaft is a 3 bolt design and will use the Lingenfelter 3 bolt cam conversion kit (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=L200175307&Category_Code=) if you are installing it in a single bolt application like the 2007 – 2010 LS2 or LS3. If you are installing it in an earlier LS1 or LS6 engine with the cam sensor at the back of the engine you will need a 2005 LS2 front cover (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12600325&Category_Code=), 2005 1x cam sprocket (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12586481&Category_Code=), camshaft extension harness (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=CE-109081&Category_Code=), 2005 LS2 chain dampner. (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12588670&Category_Code=)

If you are installing this in a 2010 Camaro L99 engine you also will need to replace L99 lifters with LS3 lifters (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12499225&Category_Code=) and lifter guides. (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12595365&Category_Code=) Replace L99 front cover with a LS3 front cover (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12600325&Category_Code=). While the heads are off you may also want to replace the L99 valves with the lighter 2.160" hollow stem LS3 intake valves (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12569427&Category_Code=), 1.59" heavy duty Inconnel exhaust valves. (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12612427&Category_Code=)

Here is a link to the LS9 camshaft in our store. (http://www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Store_Code=LPE&Product_Code=12605527&Category_Code=)

[dallasstx]

How ironic... stuff a ZR1 cam in one of the fraternal twin's LS1 motors (see sig below) costs about the same price as doing so with the Lingenfelter GT7... after buying the necessary adaptive hardware.

The Lingenfelter GT2-3 cam is probably better for my non-boosted needs coupled with Z06 "243" heads, but it would sure turn a few heads to say you got a ZR1 cam providing the heartbeat in a LS1's aluminum block !

[tirkob1]

Would this cam work well in my sts turbod' trailblazer ss.?

[Tim@Lingenfelter]

The ZR1 LS9 camshaft would work excellent in a Trailblazer SS with a turbocharger and will still keep the low RPM torque numbers up which is important in a somewhat heavy vehicle.

[tirkob1]

With this cam would I need to go with different length pushrods?

[Jeff@Lingenfelter]

stock 7.400 pushrods are all that is necessary for a street driven TBSS with this cam. You should always double check, but we normally reuse them and they do very well.