Precision Race Components Cylinder Head Specs & Pics!!

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Mar 24, 2005 | 11:57 AM

Jason 98 TA

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From: Texas!

Precision Race Components Cylinder Head Specs & Pics!!

We just received 10 sets of Stage 2.5 5.3l Precision Race Components Cylinder heads today!! All back orders are now being filled & we have a few sets of heads left for anyone needing a good quality cylinder head & a awesome price!

Here's The Specs On The Heads:

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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

Mar 24, 2005 | 12:51 PM

MARKSZ71

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From: bama bitch

i have these heads and i love them,im not swinging on anyone's nuts they just flat out make power,they outflowed my patriot stage 2 by over 25cfms.Car picked up 2tenths over patriot heads.

Mar 24, 2005 | 02:42 PM

Jason 98 TA

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From: Texas!

Thanks for the support Mark!

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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

Mar 24, 2005 | 02:54 PM

Caribe

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From: League City, TX.

What is the p/v clearance with these heads using the TSP 233/239 cam?

Mar 24, 2005 | 04:22 PM

MARKSZ71

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From: bama bitch

i cant say on tsp part but i bet it would work if u dont have the heads milled .20 like i do

Mar 24, 2005 | 04:28 PM

Jason 98 TA

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From: Texas!

I will get some clearances numbers together for you hopefully early next week. I also posted results from these heads & a mini stick in the dyno section last week late

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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

Mar 24, 2005 | 04:34 PM

JoeyGC5

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From: St Joe, MO

Dammit Jason, if I didn't just dump $3500 in wheels and a minitub kit, I'd be throwing more money at you

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Mar 24, 2005 | 07:33 PM

TVWilkes

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From: RainbowCity,Alabama

Quote:

Originally Posted by f-bodman

Hey Jason, I've gotten conflicting answers on this one and I'm sure alot of people would like to know. Will there be any clearance problems with these heads and a F13?

What is the LSA of your F13?

Mar 24, 2005 | 07:58 PM

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f-bodman

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From: Grand Rapids, MI

Sorry, it's a 114+4. That's one of the reasons I went with the 114, just a little more room

Mar 24, 2005 | 08:03 PM

#11

TVWilkes

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From: RainbowCity,Alabama

I believe the 114 will clear.The 112 is tighter.I would still verify piston to valve clearance.

Mar 24, 2005 | 08:14 PM

#12

f-bodman

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From: Grand Rapids, MI

Thanks for the reply. I will check it to make sure. Can't wait to see how this combo works out.

Mar 25, 2005 | 09:23 AM

#13

Jason 98 TA

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From: Texas!

Terry should know, he's installed a seen a set of PRC 2.5s installed with a F13

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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

Mar 25, 2005 | 11:08 AM

#14

JakeFusion

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From: Pace, FL

I still haven't seen the flow numbers on these heads, or the port volume. Can you let us know, Jason?

Mar 25, 2005 | 11:37 AM

#15

gomer

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From: The Confederacy

Quote:

Originally Posted by JakeFusion

I still haven't seen the flow numbers on these heads, or the port volume. Can you let us know, Jason?

I had a set flowed locally before I installed them on Mark's car. I posted all th numbers and flow graphs about a month ago. I didn't check runner volume. I'll find the post and link to it.

Mar 25, 2005 | 11:40 AM

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gomer

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From: The Confederacy

Here's a link to where I had them flowed.
https://ls1tech.com/forums/generation-iii-internal-engine/263891-tsp-stage-2-5-5-3-flows-308-a.html

Mar 25, 2005 | 01:00 PM

#17

JakeFusion

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From: Pace, FL

Ah, thanks, Gomer!

Mar 25, 2005 | 06:49 PM

#18

Jason 98 TA

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From: Texas!

Another set is on the way to Gomer right now

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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

Mar 25, 2005 | 09:42 PM

#19

gomer

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From: The Confederacy

Quote:

Originally Posted by Jason 98 TA

Another set is on the way to Gomer right now

I'll be dynoing and tuning that combo next week sometimes. It is PRC heads with at TSP 225 in a 6 speed car. All bolt ons except an under drive pulley. I'm hoping for some good numbers out of the car, we'll know next week.