Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Hey guys need some quick answers.

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Old 02-23-2012, 05:43 PM
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Default Hey guys need some quick answers.

I'm looking at buying the stock valve train from 317 heads..
Its springs, valves & retainers/locks. But the specs aren't posted..I've looked online but figured it'd be alot quicker to just asking..These valves are going into a jeep head, so I really need the specs to clarify if they will/will not work.

I need diameter, length, stem diameter, and if they are tuliped on the underside like the Ls1 valves are.
This is the buyers statement.
"Removed from a set of 317 heads, valves are all the same for almost all ls style heads except ls3 and ls7, but please check to make sure. The engine was a running 2002 LQ4."

Anyone have some specs on these?
Old 02-23-2012, 06:01 PM
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Still haven't found much yet..

26 veiws and no one knows the stock valve specs?
Old 02-23-2012, 06:24 PM
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317's
Head: 2001+ LQ4 and LQ9 6.0 Liter Truck
Material: Aluminimum
Part Number:
12562317 -LQ4
12572317 -LQ9
12572035 -LQ9
Combustion Chamber Volume: 71.06cc
Compression Ratio: 10:1 LQ9 Flat top pistons
Compression Ratio: 9.6:1 LQ4 Dish piston
Intake Port Volume: 210cc
Exhaust Port Volume: 75cc
Intake Valve Diameter: 2.00 inches
Exhaust Valve Diameter: 1.55 inches


243's
Head: 2001 LS6 5.7 Liter Passenger Car
Material: Aluminimum
Part Number:
12564243
Combustion Chamber Volume: 64.45cc
Compression Ratio: 10.5:1
Intake Port Volume: 210cc
Exhaust Port Volume: 75cc
Intake Valve Diameter: 2.00 inches
Exhaust Valve Diameter: 1.55 inches


So are the valves in these heads the same? lQ4 valves = Ls1 valves?




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