IMPROVEMENTS To The PRC LS6 Street Heads!!
10-30-2006, 07:51 AM
#21
I know you've been asked a lot of questions already, but what are the combustion chamber sizes? Are the heads milled at all? The reason I ask is I have a TR224/224 that I love, but want to cut down my quench area but I'm not sure I can do it with my current set of heads. I'm not sure how much they were milled and I'm concerned about PtoV if I were to run a cometic 0.040" set of gaskets.
10-30-2006, 08:37 AM
#22
Ok guys here we go 
the last set that shipped went
.300207
.400 256
.500 292
.600 314
*this was a 2.02 valve setup
You can still get the cylinder head with stock size valves for running large camshafts.
The power output from the two cylinder heads are very similar.
We will still deck any customers head to their requested chamber size. Standard size is 64cc. The stock size valve setups will still be ms4 friendly with the .015" cut off the deck!
I hope I hit everyone's questions.
the last set that shipped went
.300207
.400 256
.500 292
.600 314
*this was a 2.02 valve setup
You can still get the cylinder head with stock size valves for running large camshafts.
The power output from the two cylinder heads are very similar.
We will still deck any customers head to their requested chamber size. Standard size is 64cc. The stock size valve setups will still be ms4 friendly with the .015" cut off the deck!
I hope I hit everyone's questions.
__________________
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
10-30-2006, 08:38 AM
#23
With the 2.02" intake valve in the head you will have almost stock clearance! As a result you could run the cometic .040" gaskets & still deck the heads a easy .020" on top of that!!
Originally Posted by The Alchemist
I know you've been asked a lot of questions already, but what are the combustion chamber sizes? Are the heads milled at all? The reason I ask is I have a TR224/224 that I love, but want to cut down my quench area but I'm not sure I can do it with my current set of heads. I'm not sure how much they were milled and I'm concerned about PtoV if I were to run a cometic 0.040" set of gaskets.
__________________
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
10-30-2006, 08:41 AM
#24
Ben we use a newen cnc seat & guide machine. The system uses a single point cutter that allows us to instantly change any aspect of the valve job that we want to adjust. As a result we have access to the most advanced machinery when it comes to developing a valve job & tweaking combinations. The current intake port only uses a radiuas at the point the top angle merges into the 90 degree that opens up the chamber.
Originally Posted by Studytime
Jason, can you describe the valvejob? Is it a multi-angled or is it radiused on both sides of the margin?
Thanks guys! Glad to see continuing improvements to a great product already!
Ben T.
Thanks guys! Glad to see continuing improvements to a great product already!
Ben T.
__________________
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
10-30-2006, 06:53 PM
#27
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Originally Posted by PIMP_2
blah blah I used the wrong forum and got my post deleted by Nine Ball
on a serious note, I have the "old" style LS6 heads (they are 2 months old or so) so is there a real problem with the rocker arm pedastal breaking? I have only heard of this once on a ported stock casting and I think the guy had a pretty extreme set up.
p.s. LOL the evil CNC monster didnt eat mine thank god! they look bad ***, if only i could have the time to install them!
10-30-2006, 08:10 PM
#30
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Originally Posted by PIMP_2
It was some very usefull information if your planning on dumping 1100 bones into TSP's heads.
10-31-2006, 11:36 AM
#36
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Very nice. Jason, could you shoot me a PM for applying this to a set of 243 heads that I already have? Also, any larger valve choices? I intend to use the heads on a 408 nitrous motor.
10-31-2006, 03:03 PM
#37
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Originally Posted by BQTransAm
I am currently running the original Torquer cam, and I like it. Would these heads be a good addition or should I look at something else, like a 5.3 head.
R/
Frat
10-31-2006, 03:18 PM
#38
Originally Posted by Jason 98 TA
Ok guys here we go
the last set that shipped went
.300207
.400 256
.500 292
.600 314
*this was a 2.02 valve setup
You can still get the cylinder head with stock size valves for running large camshafts.
The power output from the two cylinder heads are very similar.
We will still deck any customers head to their requested chamber size. Standard size is 64cc. The stock size valve setups will still be ms4 friendly with the .015" cut off the deck!
I hope I hit everyone's questions.
the last set that shipped went
.300207
.400 256
.500 292
.600 314
*this was a 2.02 valve setup
You can still get the cylinder head with stock size valves for running large camshafts.
The power output from the two cylinder heads are very similar.
We will still deck any customers head to their requested chamber size. Standard size is 64cc. The stock size valve setups will still be ms4 friendly with the .015" cut off the deck!
I hope I hit everyone's questions.
Here is a comparison to some "trick flow" heads with 2.04" intake valves listed for $2400.
Flowbench Results:
Lift Value Intake Flow Exhaust
0.100 68 55
0.200 142 115
0.300 215 185
0.400 260 230
0.500 300 251
0.600 320 259
10-31-2006, 03:32 PM
#39
I'm wondering how the 5.3's flow w/ 2.02 intake valves instead of the 2.04
and then that compaired to the 2.02 ls6.
Just when you think your getting to know the products out there they gotta go and do something like this.......
Good job!!!!!!!!!!!!!!!!!!!!!!
and then that compaired to the 2.02 ls6.
Just when you think your getting to know the products out there they gotta go and do something like this.......
Good job!!!!!!!!!!!!!!!!!!!!!!
10-31-2006, 03:59 PM
#40
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Originally Posted by PAGregSS
Very nice. Jason, could you shoot me a PM for applying this to a set of 243 heads that I already have? Also, any larger valve choices? I intend to use the heads on a 408 nitrous motor.
Ben T.