PRC 247cc Heads Nearly Done!!
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From: Texas!
PRC 247cc Heads Nearly Done!! Just thought I'd let you guys know we're working hard to finalize the PRC 247cc ports! Shortly I'll post a flow bench video for you guys to enjoy! These heads have moved over 370cfm on our SF 600 bench. 
We have a few days left of tweaking before we settle on the final version, but we're very close.
Did I mention it'll be priced the same as all the other PRC cathedral heads? Bottom line is you don't have to pay $3,000 for a top of the line cathedral head!
I just keep thinking it's to bad this head wasn't done before the Hot Rod magazine shootout's cylinder head comparision. The PRC 237cc head moved more air than all the other cathedral heads. (even competitors 245s) Imagine if this head would have made it to that shootout! LOL
We have a few days left of tweaking before we settle on the final version, but we're very close.Did I mention it'll be priced the same as all the other PRC cathedral heads? Bottom line is you don't have to pay $3,000 for a top of the line cathedral head!
I just keep thinking it's to bad this head wasn't done before the Hot Rod magazine shootout's cylinder head comparision. The PRC 237cc head moved more air than all the other cathedral heads. (even competitors 245s) Imagine if this head would have made it to that shootout! LOL
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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
Thread Starter
LS1Tech Premium Sponsor
iTrader: (4)
Joined: Nov 2001
Posts: 4,229
Likes: 4
From: Texas!
Give me some time guys & I'll get more data for you. Will post a flow video today.
It will go on a 4.070" bore no problem, infact hopefully I'll be flowing it some on that exact plate today!
It will go on a 4.070" bore no problem, infact hopefully I'll be flowing it some on that exact plate today!
__________________
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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I just built/dyno'd a 408 with the 237cc heads. Made great power at 500rwhp for a low compression 236 cam setup. More than I expected na. Now time for the 14 lbs of boost.
Will be ordering another set soon.
Will be ordering another set soon.
That is not half bad! Glad to see some of these results coming out.
FormerVendor
Joined: Jun 2011
Posts: 890
Likes: 3
Just had another customer of mine finish up a build consisting of a TSP built 418, PRC 247s, TSP custom cam and all other supporting mods of course. Car made 574-575rwhp through a six speed. Customer is supposed to be sending me some updated graphs that I can post up. Several other builds are currently underway using the new 247s as well so hopefully we will have several other results to share in the near future from other customers.
Last edited by Sales1@Texas-speed; Sep 1, 2012 at 01:52 PM.
FormerVendor
Joined: Jun 2011
Posts: 890
Likes: 3
Its 251/259 camshaft. Hope to have some updated track times in the near future plus the car has a healthy dose of nitrous as well so I expect it to perform pretty good.
Last edited by Sales1@Texas-speed; Sep 2, 2012 at 09:33 PM.
