LT1 Stock Valve Size - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums

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post #1 of 8 (permalink) Old 04-09-2009, 08:33 PM Thread Starter
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LT1 Stock Valve Size

Does anyone know the stock valve dimensions (meaning the valve head, stem length and stem diameter) for the LT1?

1997 White SS M6---Sold :candlesad
2005 Chrysler 300 Limited

2003 Silverado SS
Lloyd Elliot Stage 1 Heads / Cam, 218*/214* .578"/.578" 114 LSA, Pacesetter Coated LTs, Custom Fabbed Offroad Intermediate Pipes into a stock muffler, 2/2 Belltech Drop, Blackbear Tuned, E-Fans, Home-Made Ram Air, Train Horns
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post #2 of 8 (permalink) Old 04-09-2009, 08:38 PM
CKJ
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I know the stock stem diameter is 11/32. The LT1 intake is a 1.94 and the exhaust is a 1.50. Thats stock specs. Stem length is news to me.
post #3 of 8 (permalink) Old 04-09-2009, 08:39 PM
95Z
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Yep, its the same as any other SBC valve if you need to order replacements any will work.



Yep its slow.

Making the world a warmer place one gallon at a time.
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post #4 of 8 (permalink) Old 04-09-2009, 08:42 PM Thread Starter
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I am looking on Summit, and they offer different stem lengths, so I figured they would ask.

1997 White SS M6---Sold :candlesad
2005 Chrysler 300 Limited

2003 Silverado SS
Lloyd Elliot Stage 1 Heads / Cam, 218*/214* .578"/.578" 114 LSA, Pacesetter Coated LTs, Custom Fabbed Offroad Intermediate Pipes into a stock muffler, 2/2 Belltech Drop, Blackbear Tuned, E-Fans, Home-Made Ram Air, Train Horns
New 97SS is offline  
post #5 of 8 (permalink) Old 04-09-2009, 08:45 PM Thread Starter
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http://store.summitracing.com/egnsea...115+4294789044

check out the search filter at the top, make sure I am not retarded. all the stems are different lengths.

1997 White SS M6---Sold :candlesad
2005 Chrysler 300 Limited

2003 Silverado SS
Lloyd Elliot Stage 1 Heads / Cam, 218*/214* .578"/.578" 114 LSA, Pacesetter Coated LTs, Custom Fabbed Offroad Intermediate Pipes into a stock muffler, 2/2 Belltech Drop, Blackbear Tuned, E-Fans, Home-Made Ram Air, Train Horns
New 97SS is offline  
post #6 of 8 (permalink) Old 04-09-2009, 08:47 PM
95Z
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Oh, do you mean the +.100 ones?

Those are if your valve seats have been cut down or other modifications have been made to your cylinder head.



Yep its slow.

Making the world a warmer place one gallon at a time.
95Z is offline  
post #7 of 8 (permalink) Old 04-09-2009, 08:48 PM Thread Starter
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nevermind, I crossed the PN from Thunder Racing in a Summit search and got exactly what I was looking for.

Thanks for allowing me to waste your time.

1997 White SS M6---Sold :candlesad
2005 Chrysler 300 Limited

2003 Silverado SS
Lloyd Elliot Stage 1 Heads / Cam, 218*/214* .578"/.578" 114 LSA, Pacesetter Coated LTs, Custom Fabbed Offroad Intermediate Pipes into a stock muffler, 2/2 Belltech Drop, Blackbear Tuned, E-Fans, Home-Made Ram Air, Train Horns
New 97SS is offline  
post #8 of 8 (permalink) Old 04-09-2009, 08:48 PM
95Z
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http://www.jegs.com/p/Manley/746722/10002/-1

No problems with those.



Yep its slow.

Making the world a warmer place one gallon at a time.
95Z is offline  
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