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PRC LS3/L92 CNC'd heads (PICS)

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Old 10-15-2009, 10:48 PM
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those flow numbers seem to be a bit high for heads that have barely any work in them.... They need to work on the CNC program.
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Old 10-16-2009, 01:04 AM
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Originally Posted by sprayed99
those flow numbers seem to be a bit high for heads that have barely any work in them.... They need to work on the CNC program.
what are you talking about?

Chad
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Old 10-16-2009, 06:50 PM
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Originally Posted by sprayed99
those flow numbers seem to be a bit high for heads that have barely any work in them.... They need to work on the CNC program.
Did you look at their site and compare the stock and ported flow #'s?
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Old 10-18-2009, 05:09 PM
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Your cam is in 87silverbullet U will LOVE it and should post dyno results....and for the record, where these heads are concerned, there is wisdom out there. 87 found it
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Old 10-18-2009, 06:36 PM
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Originally Posted by 87silverbullet
It's going in an L92 6.2 376 cu motor I picked up.

That cam is close to what I had in my ls1 that I blew up. It was 230/240 613/608 111. I wanted to go into this motor fresh so I chose another cam instead of re-using that one.
FWIW: Your old cam would have worked very well.
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Old 10-19-2009, 09:39 PM
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Originally Posted by WKMCD
FWIW: Your old cam would have worked very well.
Oh really? You want to buy it?
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Old 10-21-2009, 12:05 PM
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Texas speed- what's the cost of sending in your own l92's to be cnc'd?
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Old 10-22-2009, 04:33 AM
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Originally Posted by Nimitz87
they are here and gorgeous....PRC LS3/L92 heads milled to 66cc chambers 2.165/1.59 hollow stem valves


Is the Ex valve hollow stem as well? If so, who makes it and how much does it weigh?
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Old 10-22-2009, 04:45 AM
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Originally Posted by Hans Grüber
Is the Ex valve hollow stem as well? If so, who makes it and how much does it weigh?
intake only, they weigh 91grams and are made by Ferrea.

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Old 10-22-2009, 01:31 PM
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I wonder how good the hollow stem valves hold up to nitrous. Like a 200 shot or something.
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Old 10-22-2009, 01:53 PM
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Originally Posted by darren s
Texas speed- what's the cost of sending in your own l92's to be cnc'd?
PM Sent.
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Old 10-22-2009, 01:59 PM
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Originally Posted by 87silverbullet
I wonder how good the hollow stem valves hold up to nitrous. Like a 200 shot or something.
I dunno, but I'll find out once the motor is forged.

Chad
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Old 10-22-2009, 05:01 PM
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Originally Posted by Jon@Texas-Speed
PM Sent.
I would like that same PM sir
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