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PRC stage 1.0 LS6 heads.....
Thread Starter
Staging Lane
Joined: Aug 2009
Posts: 53
Likes: 0
From: Edmonton Alberta , Canada
PRC stage 1.0 LS6 heads..... Got them via UPS today.... opened the box.
first impressions:
man, ALOT bigger than i remember my stock head ports being.
ported surfaces are all smooth no burrs. some finished surfaces have "PRC" engraved into them, i thought it was a nice touch. however, a few issues regarding shipping. The box they came in was dented on the outside. the heads themselves had a few compression dents around the edges, thankfully none of them were on sealing surfaces, some time with the swiss files, and prussian blue helped to remove the high spots, followed by some 1000-3000 grit sandpaper. slid a MLS gasket and checked if any of the filed and sanded spots even touched the sealing rubber, they all cleared. think ill be ok?
Texas Speed if your reading this: your workmanship is top notch
but pack delicate stuff with a few more layers of cardboard and bubble wrap!
pics:
first impressions:
man, ALOT bigger than i remember my stock head ports being.
ported surfaces are all smooth no burrs. some finished surfaces have "PRC" engraved into them, i thought it was a nice touch. however, a few issues regarding shipping. The box they came in was dented on the outside. the heads themselves had a few compression dents around the edges, thankfully none of them were on sealing surfaces, some time with the swiss files, and prussian blue helped to remove the high spots, followed by some 1000-3000 grit sandpaper. slid a MLS gasket and checked if any of the filed and sanded spots even touched the sealing rubber, they all cleared. think ill be ok?
Texas Speed if your reading this: your workmanship is top notch
but pack delicate stuff with a few more layers of cardboard and bubble wrap!
pics:
Glad you hear you like the heads. Definitely let us know how they work out for you.
Man UPS is brutal on items. I don't know what else to do to protect the heads. They are bubble wrapped, bagged, wrapped in corrugated cardboard, and then boxed in a double corrugated cardboard box! We've done everything we can think of to protect the heads as much as possible during shipping. You can imagine how many times they are dropped, kicked, thrown, etc. I'll make mention to see if we can come up with something else to add to it to possibly help out. We definitely appreciate the feedback and are always looking for ways to improve!
Let us know if you need anything at all and we'll get you fixed up!
Thanks again!
Jon
Man UPS is brutal on items. I don't know what else to do to protect the heads. They are bubble wrapped, bagged, wrapped in corrugated cardboard, and then boxed in a double corrugated cardboard box! We've done everything we can think of to protect the heads as much as possible during shipping. You can imagine how many times they are dropped, kicked, thrown, etc. I'll make mention to see if we can come up with something else to add to it to possibly help out. We definitely appreciate the feedback and are always looking for ways to improve!
Let us know if you need anything at all and we'll get you fixed up!
Thanks again!
Jon
Thread Starter
Staging Lane
Joined: Aug 2009
Posts: 53
Likes: 0
From: Edmonton Alberta , Canada
yep
i didnt know if posting pics of the actual ported runners was taboo, otherwise i would have posted some . really nice organic kind of a flow to them, i think i will see a significant gain on the dyno come spring
i didnt know if posting pics of the actual ported runners was taboo, otherwise i would have posted some . really nice organic kind of a flow to them, i think i will see a significant gain on the dyno come spring
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The ports are actually not that large. Just using a eye ball to check size isn't the correct way to determine if a port is "way bigger"
The PRC ports are actually fairly small compared to a lot of LS6 ported heads on the market. They were redesigned a while back to maximize airflow & keep the port as small as possible.
The PRC ports are actually fairly small compared to a lot of LS6 ported heads on the market. They were redesigned a while back to maximize airflow & keep the port as small as possible.
__________________
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
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Staging Lane
Joined: Aug 2009
Posts: 53
Likes: 0
From: Edmonton Alberta , Canada
The ports are actually not that large. Just using a eye ball to check size isn't the correct way to determine if a port is "way bigger"
The PRC ports are actually fairly small compared to a lot of LS6 ported heads on the market. They were redesigned a while back to maximize airflow & keep the port as small as possible.
The PRC ports are actually fairly small compared to a lot of LS6 ported heads on the market. They were redesigned a while back to maximize airflow & keep the port as small as possible.
No worries, I just don't want you thinking you bought some hogged out cylinder head. We worked really hard to minimize port size while maximizing port flow!
Let us know how that thing does on the dyno!!!
We worked really hard to minimize port size while maximizing port flow! Let us know how that thing does on the dyno!!!
__________________
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
TECH Senior Member
Joined: Feb 2009
Posts: 5,445
Likes: 4
how much more power dose the stage2 LS6 head make over the stage1 LS6 head?which cam will make the most torque with ether head?can I use stock rocker arms on these heads? or do their require aftermarket rocker arms?
Last edited by garygnu; Feb 7, 2010 at 11:27 AM. Reason: added more infor.
