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Thread: prc heads?
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06-10-2008, 05:26 PM #1
prc heads?
anyone using or know someone that is using the prc heads from texasspeed
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06-10-2008, 05:41 PM #2
I know a bunch of people using them. Best budget heads out there imo. I believe they are coming out with their own castings too.
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06-11-2008, 06:26 AM #3
I have their Stage 2.5 5.3L heads milled to 60cc. For a budget head I am certainly pleased with the results. While the peak HP gains were nice, I was really looking to build a ton of power down low for the streets and I ended up with a torque monster. The peak TQ number on my recent dyno tune was 406, however by 2700 rpm I'm already over 350+ ft/lbs.
Based on most of the numbers I've seen, it seems like the Stage 2.5 5.3 heads probably leave 10 - 20 additional horsepower on the table when compared to some of the more expensive top performers (AFR, TFS, ETP, etc.). Given that the heads were $1,032 shipped (I didn't need the springs, etc.) the gains I netted from them were well worth it.
One word of caution, if you're looking to build an all-out track car, it would be wise to simply save up and go with the best. Those 10 - 20 rwhp will make a difference at the track if you're on a quest for lower ETs. For me, I simply wanted to pick up a nice gain from a budget head swap and then to put the rest into my N2O setup....hence, the PRC heads were a great fit.2002 Camaro SS M6, 2.5 PRC 5.3L heads, TFS 228/230 cam, FAST 92, bolt ons + a 10 lb bottle in the back.
1989 Corvette L98, A4, Full bolt ons, etc.
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06-11-2008, 07:40 PM #4
thanks for the info, im also in for the budget as opposed to lower et's, just looking for some decent gains over stock with a cam and then a dry shot of nitrous, hopefully it will be good for 450rwhp on a small shot
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06-11-2008, 07:53 PM #5
Yes those heads are very good imho. Although I wouldnt ever run a dryshot on an engine no matter what, its just a disaster waiting to happen. Give yourself the added insurance and cylinder cooling fuel of a wet shot even if its a small one and you will make way more power and safer.
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06-11-2008, 08:11 PM #6
i have thought the dry is the safe route, i just didnt really want to mess with the fuel lines, and the dry shot is cake to install
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06-11-2008, 08:19 PM #7
Wet is safer, fuel line you can just simply remove shrader valve on fuel rail and fuel line to nos solenoid just screws on right there. The problem with dry is you are relying on the cars fuel system to deliver extra fuel. It can easily lean out on dry shot even if everything is working good, and worst scenario you could have an injector get weak and lean a cylinder or if maf went out of range or malfunctioned it would be bye bye to motor. It leaves to many varaibles for failure on the table. With the wet you are getting more fuel to engine based off the simple opening and closing of aircraft grade solenoid that almost never fail. Way more power also.
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06-13-2008, 05:59 AM #8
- Join Date
- Mar 2007
- Location
- NC
- Posts
- 421
NBM- 1998Z28
I like mine. They are cut to a 59cc chamber size. My pistons are -2cc so I don't have to worry about the valves hitting the piston. Made a nice fat wide torque curve.
TSP 347 SB, TSP Stage 2.5 PRC LS6, TSP MS4, Performabuilt Stage 2 4L60E, Yank PT4000, 4.11s, Fast 90/90, FTRA Cold air intake+all the free mods, Dynatech Supermaxx Exaust System, DMH Cutouts, Hooker Catback/FTRA Tips. Tuned by RPM/Garner NC. 11.28@119
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06-16-2008, 09:33 AM #9
- Join Date
- Apr 2007
- Location
- Riverside OH
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- 78
NBM- 98 formula
stage 2.5 5.3 heads here
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06-16-2008, 07:02 PM #10
have you been able to dyno after the install john
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06-18-2008, 03:54 PM #11
- Join Date
- Apr 2007
- Location
- Riverside OH
- Posts
- 78
NBM- 98 formula
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06-18-2008, 05:08 PM #12
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06-19-2008, 12:35 PM #13
- Join Date
- Apr 2007
- Location
- Riverside OH
- Posts
- 78
NBM- 98 formula
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06-19-2008, 04:13 PM #14
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07-06-2008, 03:49 AM #15
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07-06-2008, 06:47 AM #16
How so???
http://www.texas-speed.com/shop/item...id=84&catid=40
$1,199 with the dual spring kit.
https://www.patriot-performance.com/...&cat=36&page=1
$1,195 with the dual spring kit.
Wow, you save $4. (PRC outperforms tho)
Last edited by INMY01TA; 07-06-2008 at 06:56 AM.
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07-06-2008, 07:32 AM #17
- Join Date
- Aug 2007
- Location
- Greeley,Co
- Posts
- 1,006
Artic White- 1999 Z28 408 Stroker M6
99 Camaro Z28-
Colorado's Slowest 408 with a 150 shot
95 Camaro Z28 LT1-
LT4 Hot Cam Kit, Fuddle 3,800 Stall
http://www.fquick.com/99Ls1fever
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07-06-2008, 07:40 AM #18
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07-06-2008, 07:47 AM #19
- Join Date
- Aug 2007
- Location
- Greeley,Co
- Posts
- 1,006
Artic White- 1999 Z28 408 Stroker M6
The patriot flow numbers for my heads at .600 lift were 321cfm and the stroker shoots nitrous so its not fully n/a but it runs 10's and it is a full street car and I am not a light guy... So I just have personal prefrence after running PRC'S before and having a valve drop after a spring cracked... So to say I hate PRC'S would be a VAST understatement!!!!
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07-06-2008, 07:48 AM #20
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