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Hawks sinister cam kit ... recommended ????

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Old Apr 11, 2017 | 09:37 PM
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Default Hawks sinister cam kit ... recommended ????

My 99ss m6 is getting a little boring ... only mods are long tubes and a mail order tune ...
Was thinking about putting it up for sale just because I don't really drive it ..
Any way maybe a cam would get me a little more excited about driving it again .
Was looking at the hawks Sinister 230/236 .591"/.601" 112 LSA Camshaft.
What do you guys think. Any recommendations on springs ?? And are push rods necessary or just recommended
I'm not looking to get to carried away and currently have no plans for future mods other than the cam ...
Or do you suggest a different route
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Old Apr 11, 2017 | 09:45 PM
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The profile is actually pretty good. I like a 230/236 112+2 or so for a good hot street cam.

I'd just go to Cam Motion and have them ground it. 230/236 .629/.604 112+2.

Then grab some Manton 11/32nd pushrods, BTR Platinum Springs, and a new LS6 oil pump or Melling 10295 pump, C5R timing chain, and swap out the stock trunnions for some Straub Bronze bushed Trunnions.
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Old Apr 11, 2017 | 11:05 PM
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A cam might get you interested in the car again, but I would becareful how large you go. 9 degrees of overlap is pushing the threshold of what I would want to drive frequently. I would do something like the lingenfelter GT12 or Cam motion Titan 3 or 4.
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Old Apr 11, 2017 | 11:38 PM
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Originally Posted by kinglt-1
A cam might get you interested in the car again, but I would becareful how large you go. 9 degrees of overlap is pushing the threshold of what I would want to drive frequently. I would do something like the lingenfelter GT12 or Cam motion Titan 3 or 4.
Sound advice given factory compression. If 243 heads and thinner gaskets to get 11.0.1 then that 230/236 cam would drive nice with no low rpm bucking. Sticks are less forgiving than stall converters
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Old Apr 12, 2017 | 05:42 AM
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Where do I get the thinner headgaskets is their a a factory GM part # I can use ...
I work at the dealer so I get a great price on factory parts ad 90% of the time I can get the the next day
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Old Apr 12, 2017 | 05:50 AM
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I'm Not Guilty,

I suggest a different path before the cam...

Your only mods are 6:39:44 AM headers and mail order tune?

The most fun with a six speed car in my experience comes from the driving experience. Cams are great but gears have more impact on the driving experience. 3.73's to 4.10's are an excellent range. I like 4.10's the best. Aftermarket shifters also greatly improve the experience.

An aftermarket rear 8.8 or 9 inch is a big step if you don't beat the car the 10 bolt can live a good while. An excellent clutch also helps eventually down the line.

Finally the cam after sorting the drive line. In part because bigger Cams drive better with 3.73's and higher gears.

If you've had lots of experience with Cams go big, otherwise the LPE GT-12 227/235 or Tick SNS2 227/235 are probably where I would start lookijg.

Also LS6 intake or better at the same time as cam plus the other stuff and ideally a good underwrite balance ideally.

Best wishes on your build.
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Old Apr 12, 2017 | 08:41 AM
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That sinister cam would sound identical to this.. My compression was bumped with .040 gaskets.. haven't been able to dyno or hit the track yet but have driven it about 60 miles.. So far driveability is better than expected and i only have a base tune in it currently (No stalling at stops or RPM flucuation). I have a stalled auto, so a M6 may have a little more driveability issues, but honestly i think it could still be dialed in with a good tune.

If this is your first cam and you drive a lot, a smaller spec may be a better option with the 6 speed.. but if its a weekend car i wouldn't be afraid of a 230/236 112 cam..
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Old Apr 12, 2017 | 09:55 AM
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Old Apr 12, 2017 | 09:38 PM
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My advice to everyone that is modding their car is this. No matter what you think you have planned build it for boost.
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Old Apr 12, 2017 | 10:19 PM
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I tried a set of 4.10's for 3 tanks of fuel and I was not really happy . So I returned to the 3.42s I may have like them more with a better set of tires ...so what's the deal with with the thinner head gaskets ?? Do I keep stock push rod lengths with the thinner gaskets and the cam. . Does gym make a factory thinner head gasket
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Old Apr 12, 2017 | 10:23 PM
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Originally Posted by BrntWS6
My advice to everyone that is modding their car is this. No matter what you think you have planned build it for boost.
Yes.

It gets old pissing money into a car and making it drive worse. And it gets only slightly faster.
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Old Apr 12, 2017 | 10:24 PM
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i'm-not-guilty - Normally you would need a shorter pushrod with thinner head gaskets, as the lifter-rocker distance closes enough to make a difference.
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Old Apr 12, 2017 | 10:40 PM
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I'm running the TICK SNS Stage 3 cam in my 98 m6. 235/243 | .630"/.610" | LSA111+2 on stock 3.42's, stock heads, ls6 intake, speed long tubes, ory, and Texas speed rumbler cat back. I put down 400hp to the wheels. The way my car drives is amazing, a lot of it comes down to driver and the tune. Mine was tuned by Steve Williams(Tuned by Frost) on his dyno and I drive the car all the time and love it.


There are a million different cam choices out there. If you are looking to wake up your car a cam is def the way to go, but you must also have supporting mods to compliment it. Like long tubes, intake, ory, and exhaust so it can do what it supposed to do.
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