PRC 5.3 stage 2.5 questions
Thread Starter
Joined: Dec 2007
Posts: 1,885
Likes: 1
From: Southern California
PRC 5.3 stage 2.5 questions I am about to order all of my parts for my head/cam swap and now am stressing over a few last minute details that I am sure are no big deal but want to ask those who have bought PRCs stage 2.5 5.3l heads from Texas Speed. I emailed TSP but they are cosed and the sale for the panhard rod I am also ordering ends Monday and I would be lucky to get an answer by Tuesday.
1) Valve sizes listed in the description are a 2.04" intake valve while below in the options the only option available is for 2.02" intake valves?
The reason this is a bit of a problem is that I had PatrickG spec a custom cam for me and I need to be sure that the info I gave him is correct.
2) The price lists them as $1199 ea. yet the kit with the cam is only $1649. This has to be just a misprint but I have emailed TSP twice about this before and never gotten a responce.
I have spent alot of time to research all of my parts to try to make this a trouble free swap and these are my last two obsticles.I really appreciate the help everyone!
1) Valve sizes listed in the description are a 2.04" intake valve while below in the options the only option available is for 2.02" intake valves?
The reason this is a bit of a problem is that I had PatrickG spec a custom cam for me and I need to be sure that the info I gave him is correct.
2) The price lists them as $1199 ea. yet the kit with the cam is only $1649. This has to be just a misprint but I have emailed TSP twice about this before and never gotten a responce.
I have spent alot of time to research all of my parts to try to make this a trouble free swap and these are my last two obsticles.I really appreciate the help everyone!
Alright, well the valve size on the heads that you're looking at are 2.02/1.57.
The price is for the pair. It would be 1199 for the set of heads.
The price is for the pair. It would be 1199 for the set of heads.
Last edited by 98RedBird; Apr 6, 2008 at 01:56 PM.
When I bought mine Jon told me they dropped the valve size down to 2.02 and 1.575. This was November '07.
Another reason for the price difference is they are not gonna charge twice for the springs, retainers, and seals. You are basically adding a cam.
I would call TSP on Monday to verify, though.
R/
Frat
Another reason for the price difference is they are not gonna charge twice for the springs, retainers, and seals. You are basically adding a cam.
I would call TSP on Monday to verify, though.
R/
Frat
When I bought mine Jon told me they dropped the valve size down to 2.02 and 1.575. This was November '07.
Another reason for the price difference is they are not gonna charge twice for the springs, retainers, and seals. You are basically adding a cam.
I would call TSP on Monday to verify, though.
R/
Frat
Another reason for the price difference is they are not gonna charge twice for the springs, retainers, and seals. You are basically adding a cam.
I would call TSP on Monday to verify, though.
R/
Frat
Sorry for the delay getting back to you! The current PRC 5.3l head ships with 2.02 1.57 valves. I'm currently finalizing the R version of the PRC 5.3l heads which will include a 2.055/1.59 valve combo with air flow approaching 320cfm!!
I'll keep you guys posted on developments!
I'll keep you guys posted on developments!
__________________
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
Sorry for the delay getting back to you! The current PRC 5.3l head ships with 2.02 1.57 valves. I'm currently finalizing the R version of the PRC 5.3l heads which will include a 2.055/1.59 valve combo with air flow approaching 320cfm!!
I'll keep you guys posted on developments!
I'll keep you guys posted on developments!
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Thread Starter
Joined: Dec 2007
Posts: 1,885
Likes: 1
From: Southern California
Sorry for the delay getting back to you! The current PRC 5.3l head ships with 2.02 1.57 valves. I'm currently finalizing the R version of the PRC 5.3l heads which will include a 2.055/1.59 valve combo with air flow approaching 320cfm!!
I'll keep you guys posted on developments!
I'll keep you guys posted on developments!
Thread Starter
Joined: Dec 2007
Posts: 1,885
Likes: 1
From: Southern California
I now have no idea what my numbers will be. This has made me very un-easy so it may be a while before I have it now. Thanks for the interest and I will update as soon as I hear something.
Thread Starter
Joined: Dec 2007
Posts: 1,885
Likes: 1
From: Southern California
After asking PatrickG who spec'd my cam he has said that the cam he suggested (226/232 .609/.604 113+2 ) works great with LS2s which have less flow than these heads and have 2.00 valves. So since he thinks it will still be a great combo I will likely go ahead and place my order.
TECH Apprentice
Joined: Nov 2006
Posts: 369
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From: Copenhagen
Sorry for the delay getting back to you! The current PRC 5.3l head ships with 2.02 1.57 valves. I'm currently finalizing the R version of the PRC 5.3l heads which will include a 2.055/1.59 valve combo with air flow approaching 320cfm!!
I'll keep you guys posted on developments!
I'll keep you guys posted on developments!
[Homer Simpson] Mmmmm... must... have... heads....!! [/Homer Simpson]
Thread Starter
Joined: Dec 2007
Posts: 1,885
Likes: 1
From: Southern California