valve question

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Oct 8, 2010 | 11:10 PM

jester1614

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From: west phx

valve question

i was wondering what the biggest valve you can fit in the stock valve seats on a 94 lt1 head

Oct 8, 2010 | 11:28 PM

lt1-xjs

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From: centerville, ohio

2.00 intake, 1.56 exhaust.

Oct 8, 2010 | 11:49 PM

WS Sick

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From: Kingfisher Oklahoma

You can technicly fit a 2.02 valve on the seat, but it sets lower and the throat cannot be opened up enough and still have the seat thick.

Oct 9, 2010 | 06:08 AM

RamAir95TA

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From: South Jersey

No reason to go any bigger than 2.00" IMO.

Oct 9, 2010 | 06:28 AM

SpeedDensityZ

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From: Macclenny FL

This^^

Oct 9, 2010 | 09:39 AM

BOLO

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Quote:

Originally Posted by lt1-xjs

2.00 intake, 1.56 exhaust.

I would also think this would be the optimum for stock. I run LS1 valves in my ported stockers.

Oct 10, 2010 | 12:13 AM

jester1614

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From: west phx

are the ls1 valves any longer than the stock lt1 valves

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Oct 10, 2010 | 01:05 PM

WS Sick

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From: Kingfisher Oklahoma

Quote:

Originally Posted by speed_demon24

Lighter than most aftermarket valves IIRC due to the valve stem size.

So you'd have to get your guides to match the LS1 valves.

Oct 10, 2010 | 01:52 PM

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jester1614

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From: west phx

ok now what about stock valve length? are they the same length

Oct 10, 2010 | 01:56 PM

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speed_demon24

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From: Ocala, FL

Quote:

Originally Posted by WS Sick

So you'd have to get your guides to match the LS1 valves.

Yep if I was going through the trouble I would run LS6 valves. It's not cost effective for my application though.

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