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Will I have to flycut?

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Old Aug 28, 2006 | 06:07 PM
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Default Will I have to flycut?

I have an AZP02 cam, I don't know the exact specs because they're "secret", but apparently they are very very similiar to a G5X3. I think the lift is the same, just the duration is different by maybe 2-3 deg. My question is, if it clears stock heads on my 98 now, will it still clear either Patriot's Stg 1 CNC'd LS6 heads with stock valves or TSP PRC Stg 1 CNC'd LS6 heads with stock valves without flycutting, and will I be stuck with a regular gm MLS gasket or can I squeeze in a .040 cometic? I'm torn between the two heads at the moment. I hate to even pose the question without the specs, but just hoping since it clears now, it will clear these heads too. Thanks for any and all info...
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Old Aug 28, 2006 | 07:19 PM
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Isn't the G5X3 around 235/240ish duration? I'd suggest a .040 gasket and milling to 11:1 static compression. If you do that with a 235/240ish cam, then you'll almost definitely have to fly cut regardless of stock valves. I personally wouldn't suggest aftermarket valves because of how much PTV clearance they eat up (unless you’re willing to do all the work and calculations to get every last bit).
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Old Aug 28, 2006 | 09:08 PM
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Both heads are stage 1 LS6's so they may work. Best way is to put them on the engine and measure before start-up.

You compare two cams that both have secret specs. I do know the G5X3 specs, but won't tell out of respect for LG.
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Old Aug 28, 2006 | 10:34 PM
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Originally Posted by Xtnct00WS6
Isn't the G5X3 around 235/240ish duration?
Close... 234/242 .600/.610 on a 112/114
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Old Aug 29, 2006 | 09:25 AM
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I didn't think the X3 was much of a secret anymore. I know I've seen the specs on here at one point or another. But yeah, I'll clay it and double check anyway. I would really just rather not flycut if at all possible. I'm not looking for every last bit so I'm sure stock valves will be fine. thanks for the info fellas...
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