? 
L92 CNC Vs. Standard L92
Sorry for the misinformation. I was told by a friend that called about them that they were in fact the PRC ones. Once again, sorry about the misinformation.
Who designed the port for the GMPP ones??
Who designed the port for the GMPP ones??
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We've flow tested those heads as well as the prc l92 heads next to each other. Both sell for about 1000-1100 for the pair fully cnc ported. Our PRC L92 heads gained 25rwhp over a stock l92 head on our dyno test engine! Pay a couple hundred extra bucks & get the prc cnc ported heads, you'll get better p/v, better air flow, & better power than the stock l92 head!
What are you thinking about installing this thing on?
What are you thinking about installing this thing on?
Sorry guys, I have a flow chart here somewhere comparing the two, as well as a back to back dyno comparison. I'll try to find them and get them up here ASAP. 
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Sorry for the delay! The first one is a chassis dyno comparison for a 418 swapping from stock LS3 heads to the PRC heads. The second is a back-to-back flow comparison from the GMPP CNC'd LS3 head to the PRC LS3 head.
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http://precisionracecomponents.com/prcl921.jpg
http://precisionracecomponents.com/prcl922.jpg
Maybe that helps?
http://precisionracecomponents.com/prcl922.jpg
Maybe that helps?
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Negative. The top line is the PRC head, lower is GMPP.
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POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
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POWERBOND - ASP - AND MORE!
On The Tree
Joined: Apr 2007
Posts: 126
Likes: 1
From: SE, AZ
What cam did you use with this combination? (did I miss this?)
