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G5x3 Clearance Question

Generation III Internal Engine 1997-2006 LS1 | LS6

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G5x3 Clearance Question

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Old

Apr 15, 2008 | 08:21 AM

#1

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Launching!

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G5x3 Clearance Question

On average, how much piston to valve clearance are people getting with the G5x3 (112 & 114) cam on stock heads? I tried to do a search but I kept coming across milled or aftermarket heads. I know the cam fits but I wanted to know by how much. Does it make a difference if you have ls6 heads?

Old

Apr 15, 2008 | 10:32 AM

#2

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From: Western Burbs of Detroit

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I know my pistons were flycutt with stock heads .008 for added security. That was in 2005. Now I'm running a slightly bigger cam with afr 205 heads milled 59cc and have plenty of clearance. Sorry I don't have exact clearance numbers for ya, this the best I could do from memory.

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Apr 15, 2008 | 02:49 PM

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From: BFE

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on stock heads cam only a X3 on 112 has .07x clearance
114 is .09x on the low side

Old

Apr 15, 2008 | 03:24 PM

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Quote:

Originally Posted by PREDATOR-Z

on stock heads cam only a X3 on 112 has .07x clearance
114 is .09x on the low side

Thanks Predator.

Old

Apr 15, 2008 | 03:34 PM

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Quote:

Originally Posted by allngn_c5

I know my pistons were flycutt with stock heads .008 for added security.

I think you misplaced a decimal. .008 is almost nothing.

Old

Apr 15, 2008 | 04:49 PM

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Well let me try to type what was said then 80 thousandths, no 80 ten thousandths. Thanks for the correction bro. 8 ten thousandths is NOTHING.

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Apr 15, 2008 | 06:54 PM

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Eighty thousandths. Gotcha. I went the same flycutting my stock pistons for my G5X3 on a 112.

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Old

Apr 15, 2008 | 06:57 PM

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Quote:

Originally Posted by allngn_c5

Well let me try to type what was said then 80 thousandths,.

That's .080"

.008" is eight thousandths.

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Old

Apr 15, 2008 | 08:33 PM

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Thanks.

Old

Apr 16, 2008 | 12:16 AM

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From: Lawton, ok

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mine was .70 intake and .110 on exhaust its on a 112lsa if thats helps stock gasket 7.4 pushrods/ls7 lifters

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