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

stock valve size?

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Old 04-13-2003, 09:52 PM
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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 04-13-2003, 10:32 PM
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ttt
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Old 04-13-2003, 10:52 PM
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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 04-24-2003, 01:02 PM
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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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