Cam - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 8 (permalink) Old 05-06-2019, 04:42 PM Thread Starter
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Cam

I installed headers a year ago, Kooks and a Borla cat back system. I have a lifetime computer tune I paid for as well. I'm thinking about upgrading my cam, and only my cam. Suggestions, thoughts?

Paul
Parker, cO
2008 G8 GT
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post #2 of 8 (permalink) Old 05-06-2019, 06:49 PM
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What is stopping you from doing it? I've posted my cost sheet multiple times, but it might be of interest to you: here.

2009 Pacific Slate Metallic GT
219/223 .625.625 112 cam, Kook's headers, Solo mach shorty unbalanced, Rotofab CAI,
4 pot Brembos all around.
409 WHP 386 WTQ on Dynojet 248X

Nitto NT555 G2 245/35/20/275/30/20 on staggered 5th gen Camaro wheels.
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post #3 of 8 (permalink) Old 05-08-2019, 12:27 PM Thread Starter
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Thanks for the cost sheet ragnarock. Is there an option to install a cam and get more performance without changing springs, and other parts on the head? It would be nice just to do a cam swap. Please advise

Paul
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2008 G8 GT
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post #4 of 8 (permalink) Old 05-08-2019, 12:34 PM
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I go back and forth on a Cam daily ,but I think if you go with a Cam ,might as well do springs to get a higher RPM out of the top end .
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post #5 of 8 (permalink) Old 05-08-2019, 03:15 PM
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Cam, lifters ,springs, LS3 Intake valves, New LS3 chain tensioner, Standard volume oil pump, Remove and plug relief in pan, Check heads for flatness, They will be out of spec. usually twisted. Related gaskets and seals, And a good tune.
Do it all or you'll wish you did later.
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09 G8GT, LR,
70 Nova SS L78

"Knowledge Is Good"
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post #6 of 8 (permalink) Old 05-08-2019, 07:18 PM
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Garage
LS3 Timing Tensioner indeed. I feel that it is much better than the LS2 version that comes with the kit that I regret putting in mine. It keeps tension better, and while some folks have had theirs break that is not the norm.


As far as the heads being warped, I did not observe that issue when I did my rebuild. They checked out in spec. That said, having a machine shop resurface them is actually not going to be that expensive for just that job, and they can install brand new valve guides.

I will say this; choose springs that will go well with your combo. Don't just throw whatever comes with a kit at it.... Dual springs aren't the end all be all for everybody....

'09 PSM G8 GT - OPG Intake, DOD-Delete w/ Stage 1C 218/229 .600 Lift 117.5LSA, Kooks 1 7/8 Mids, Solo Axle-Back w/ X-Pipe, SuperPro Bushings (Front and Rear). BMR Sway Bars (Red)
Power: 400HP/392TQ


"If you want to criticize someone else's work, be sure that your own is in order first."

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post #7 of 8 (permalink) Old 05-10-2019, 08:56 AM
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Found my cam chain tensioner laying in pieces in the bottom of the oil pan when I did my cam swap. LS2 tensioner went back in on mine.
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post #8 of 8 (permalink) Old 05-14-2019, 04:04 PM
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Stick with the stage one cam unless you have a stall converter.
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