C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

32 Valve LSx Heads

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Old Apr 11, 2007 | 03:38 PM
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Default 32 Valve LSx Heads

Have you guys seen the newly released 32 valve LSx heads?

http://www.ls1lt1.com/forum/showthre...8494#post78494

Just thought you might be interested.

Jake
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Old Apr 11, 2007 | 04:36 PM
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Very sick indeed, but I wonder how much they will outflow a nice set of ETP/AFR/Trick Flows etc...
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Old Apr 11, 2007 | 05:23 PM
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From what I understand about 4-valve combustion chambers, it isn't increased maximum flow (at 100% lift) that gives the 4-valve its advantage, but greatly increased flow during the first 75% of lift and the last 75% of valve-closing events.

Greater TOTAL flow volume during valve-open time, rather than just peak flow rates at max lift.

Sounded good to me..................

Larry
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Old Apr 11, 2007 | 05:28 PM
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Great, like they're not hard enough to beat already! Nice though, they makes me want an LS engine more than ever.
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Old Apr 11, 2007 | 05:58 PM
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About as worthless as the 4 valve heads for the LT1 they did a few years ago.
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Old Apr 11, 2007 | 05:59 PM
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Originally Posted by Jeffvette
About as worthless as the 4 valve heads for the LT1 they did a few years ago.
Yep...did they ever really get those things working??
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Old Apr 11, 2007 | 06:08 PM
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I'm just wondering if the performance will be anywhere near justifying the cost. There are some sick flowing LSx heads out there that maintain good velocity. I guess on a max-effort car it may be worth it, but to us "regular Joes" a good set of 2V heads would be the logical choice...
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Old Apr 11, 2007 | 06:10 PM
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Originally Posted by Zix
Yep...did they ever really get those things working??
he he, would be nice sitting on top of the lsx 6 block!!!
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Old Apr 11, 2007 | 06:40 PM
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Originally Posted by danziger
I'm just wondering if the performance will be anywhere near justifying the cost. There are some sick flowing LSx heads out there that maintain good velocity. I guess on a max-effort car it may be worth it, but to us "regular Joes" a good set of 2V heads would be the logical choice...
Well, peak flow numbers, yes...there are come great flowing LS heads...but I would think that if these were done correctly they will have MUCH better mid-lift numbers as well as peak numbers.
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Old Apr 11, 2007 | 07:11 PM
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Originally Posted by Zix
Yep...did they ever really get those things working??
You would see them on every Corvette, F-body, Impala ever made. I expect nothing greater out of the LS1 version.


The LS1/2 heads flow extremely well, even a stock 243 casting flows well enough to reach 450 RWHP on the low end scale and still make great power down low.
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Old Apr 11, 2007 | 09:38 PM
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Those heads are for the big-buck gotta have and wow crowd, their stuff isnt cheap. I can cross the street and walk there in two minutes.

Only good thing about the 4 valver is you dont need a bunch of cam timing to make power, just deep pockets. Interesting stuff. I will say the test cars I see running back and forth with their heads get some stupid rpm, and get it quick.
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Old Apr 11, 2007 | 09:50 PM
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Originally Posted by Jeffvette
About as worthless as the 4 valve heads for the LT1 they did a few years ago.
Why bother Just get an LT5
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Old Apr 11, 2007 | 10:39 PM
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Originally Posted by Zix
Yep...did they ever really get those things working??
Brett Bauer has been reworking a set (LT1 32V for those who aren't following closely...) for a customer who has given him basically an open checkbook. The effort to make them actually work is >> the cost of the heads themselves.
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Old Apr 11, 2007 | 11:20 PM
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From: No more yankee my wankee, the Donger is tired!
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So roughly 7K for heads and to get them to run correct.

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Old Apr 11, 2007 | 11:28 PM
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Originally Posted by 94ZR1
Why bother Just get an LT5
Then you have something that will hold it's value and you don't have to worry about pushrods.
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