All New Version 2 PRC 5.3l Cylinder Head Pics!
04-16-2008, 11:50 AM
#42
Runners & chamber sized have not changed on the standard 2.5 cylinder head guys. The only one that has a runner change is the 2.5R. It has a slightly larger runner 
Jason
Jason
__________________
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
04-16-2008, 11:50 AM
#43
We are already shipping all new 5.3l orders as the new version 2 head!
__________________
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
04-16-2008, 01:48 PM
#44
On The Tree
iTrader: (2)
Join Date: Mar 2008
Location: Raleigh, NC
Posts: 145
Likes: 0
Received 0 Likes
on
0 Posts
sooo does this mean that the heads i got from you yesterday in the mail are the new ones!??!? don't really think it would make THAT much difference but still, its kind of depressing to get something, then read a thread the next day that says my heads have been updated in the last month and are an obselete design lol
p.s. thanks for the fast shipping and good looking products...can't wait to get it all put together
don't really think it would make THAT much difference but still, its kind of depressing to get something, then read a thread the next day that says my heads have been updated in the last month and are an obselete design lolp.s. thanks for the fast shipping and good looking products...can't wait to get it all put together
04-17-2008, 10:54 AM
#50
They can be ordered MS3 friendly!!
__________________
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
04-17-2008, 05:02 PM
#53
TECH Fanatic
iTrader: (18)
Join Date: Oct 2004
Location: Clifton, NJ
Posts: 1,091
Likes: 0
Received 0 Likes
on
0 Posts
Jason,
Would it be worth my while to have my 1st generation 5.3L 2.5 heads put on this CNC program? I have the one's that, correct me if i'm wrong, may have been done on a Racetech program.
Would it be worth my while to have my 1st generation 5.3L 2.5 heads put on this CNC program? I have the one's that, correct me if i'm wrong, may have been done on a Racetech program.
04-27-2008, 01:18 PM
#57
TECH Resident
iTrader: (11)
Join Date: Jan 2007
Location: Oklahoma City
Posts: 836
Likes: 0
Received 0 Likes
on
0 Posts
I'm curious as to how these will work on a cam + full bolt on stock cube LS1 as compared to the Stage 2.5 LS6 head. Have you guys conducted any tests to compare the two?
I've done a LOT of research on the 5.3 heads and it sounds like you guys are still finding ways to squeeze a few extra HP out of an already solid set of heads!
I've done a LOT of research on the 5.3 heads and it sounds like you guys are still finding ways to squeeze a few extra HP out of an already solid set of heads!
Guys the previous version of the 5.3l head is still very nice! I would not replace my older PRC 5.3l heads with the new version. Both setups work really well, we just updated the PRC heads with a few new features. 
There's definately no doubt the leader in budget minded performance cylinder heads!
We're working on package pricing for the 2.5R 2.055 / 1.60 valve setup right now!!
There's definately no doubt the leader in budget minded performance cylinder heads!
We're working on package pricing for the 2.5R 2.055 / 1.60 valve setup right now!!
Jason can you answer the question above and any prices yet? I am ready to buy in about 2 weeks
04-27-2008, 02:05 PM
#60
11 Second Club
I havent decided on a set of heads yet. I'm trying to find some that I can get the best performance/gains out of.