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How big of a valve on 346 cid?

Generation III Internal Engine 1997-2006 LS1 | LS6

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How big of a valve on 346 cid?

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Old

Jan 19, 2004 | 06:54 PM

#1

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From: Chattanooga,TN

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How big of a valve on 346 cid?

I was thinking of buying some used ARE stage 2 heads and a 224/224 .581/.581 114 lsa cam. I was told that the heads have a 2.08 intake valves

. Wouldn't that be a little much for a 346 cid? The guy said thats what he has them on and he made 402 rwhp with an M6. What do you think?

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Jan 19, 2004 | 08:07 PM

#2

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From: south jersey

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thats too big of a valve for 346 cubes

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Jan 19, 2004 | 08:16 PM

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From: Valencia, Ca

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2.02 intake and 1.60 or 1.57 will be fine on a stock cubed setup. 2.08 is too big.

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Jan 19, 2004 | 08:39 PM

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Thats big for a stock cube motor. The biggest most people run is 2.05 valve (TEA uses them) others use 2.04s I believe as well (can't remember who though - Absolute maybe?), but 2.08 is to big.

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346, cid, engine

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