C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

GM 847 cam

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Old Mar 28, 2005 | 11:45 PM
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Default GM 847 cam

anyone running one? how do you like it? what other mods do you have? was it hard to tune?? rwhp? thanks
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Old Mar 29, 2005 | 12:05 AM
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I have it in my 396. It's way more cam than you need with a 350. Not the easiest to tune and I strongly doubt you could come close to passing an emisions test. 847 specs
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Old Mar 29, 2005 | 12:07 AM
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[QUOTE=Ramrod92]I have it in my 396. It's way more cam than you need with a 350. Not the easiest to tune and I strongly doubt you could come close to passing an emisions test. 847 specs [/QUOTE


It sure sounds nice thumping away. And once tune it makes BIG power in the upper RPMs. Ramrod, how is Jeb coming along with your DFI installation?
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Old Mar 29, 2005 | 12:11 AM
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it would be going in a 383 with afr 210's
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Old Mar 29, 2005 | 12:22 AM
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Originally Posted by pr0zac
it would be going in a 383 with afr 210's

It would be a good cam choice for that. I have a friend that has a MTI built 396 using a 847. It made around 550hp on their dyno. They used ported LT4 heads if I remember right and running 11:1 compression.
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Old Mar 29, 2005 | 12:27 AM
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Tom, Jeb had PRK work on his eyes and is slowly recovering. Sounds like his eyesight was as bad as mine (20/800). You online on a different computer, can't IM you?
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Old Mar 29, 2005 | 08:20 AM
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it is going to be 10.5:1 and i am going to use a converted LT1 manifold and porting the hell out of it. got my holley commander 950 last week. all i need is injectors.
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Old Mar 29, 2005 | 07:03 PM
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good choice, that cam on stock heads makes 360 to the wheels.
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