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LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

stock valve size?

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Old Apr 13, 2003 | 09:52 PM
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noe95z28
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From: sacramento, ca, u.s.a
stock valve size?
i am wanting to add a set of new intake and exhaust valves to my set of bare lt1 heads(stock).

what is the size of stock replacement valves, and what is the biggest size i can go with no altering
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Old Apr 13, 2003 | 10:32 PM
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noe95z28
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ttt
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Old Apr 13, 2003 | 10:52 PM
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Jess
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From: Mount Vernon, WA
1.94, 1.50 are the stock sizes. And I don't know how big you can go with out altering the heads.
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Old Apr 24, 2003 | 01:02 PM
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gbelli
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From: Bovine University
Originally posted by ACA Performance
2.00/1.57 are the biggest the stock seats can take properly
Does the seat need to be modified for these valve sizes or could you just 'put them in'
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