PRC LS7 Small Bore Cylinder Heads Nears Production! 390cfm on a LS3 Bore!!
03-01-2011, 07:07 PM
#81
I would wait a while longer if you can. I am betting it will be worth it if you are doing a 416 or bigger where ya can really use it.
03-02-2011, 06:24 PM
#83
I just hope the intake port isn't too big and midlift numbers are worth all this waitng and typing.
03-03-2011, 06:40 PM
#85
03-04-2011, 10:57 AM
#86
Intake ports on the current version is right about 266cc. That's about 5cc larger than a stock LS3 head. Head moves 240+cfm at .300....
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
03-04-2011, 05:26 PM
#87
lol Getting me excited. LOL 
03-17-2011, 08:53 AM
#89
We have 6-7 sets of the PRC LS7 heads already sold & being assembled next week. I'll keep you guys posted as we get more results. I plan on installing a set on the shop L99 car this week.
One thing to keep in mind this is a LS7 / LS7 intake setup so it makes the smaller motors rev & act like a LS7 car. The power peaks are moved up like a Z06.
One thing to keep in mind this is a LS7 / LS7 intake setup so it makes the smaller motors rev & act like a LS7 car. The power peaks are moved up like a Z06.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
03-17-2011, 09:46 AM
#91
That really is going to be where these heads shine (LS3 strokers), in my opinion! They're going to make great peak power on the stock stroke stuff, but like Jason said, the powerband is moved up enough that they really need to rev higher!
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
03-17-2011, 07:35 PM
#93
How about a 416? I would love to see this with a nice street cam. Give me more reasons to start saving for a better engine.
03-18-2011, 09:06 AM
#96
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Hopefully not a stupid question >.<
But will these heads fit on an LQ4/LQ9 6.0L truck block?
I've been researching that the max bore on these is around 4.060" and I've seen a limited amount of cases in which a 4.070" and 4.080" bore was used (obviously pending sonic testing and also maxing the block out leaving no room for error/mistakes etc).
But will these heads fit on an LQ4/LQ9 6.0L truck block?
I've been researching that the max bore on these is around 4.060" and I've seen a limited amount of cases in which a 4.070" and 4.080" bore was used (obviously pending sonic testing and also maxing the block out leaving no room for error/mistakes etc).
