Texas Speed (PRC) 5.3L stage 2.5 heads -- what cam?
06-13-2007, 10:10 PM
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Originally Posted by Jpr5690
Ms4 And Terminator Heads
Last edited by chae; 07-01-2007 at 10:24 PM.
06-14-2007, 07:00 AM
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here is what i went with...i bought the tq v.3 and the heads in package along with most of my bolt ons for like 2700.00 tsp will hook you up
06-14-2007, 05:10 PM
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Originally Posted by Ws6man2000
here is what i went with...i bought the tq v.3 and the heads in package along with most of my bolt ons for like 2700.00 tsp will hook you up
06-14-2007, 05:54 PM
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goals I'd specifically love to see some dyno numbers/graphs and/or track times from some of you guys running these heads and similarly aggressive cams!
* Hopefully over 450hp/425tq at the rear wheels and hopefully very low 12's or high 11's in the 1320 *
* Hopefully over 450hp/425tq at the rear wheels and hopefully very low 12's or high 11's in the 1320 *
Last edited by chae; 06-17-2007 at 11:48 PM.
06-14-2007, 06:34 PM
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Also found some gains without heads for the New Era Performance Hellion Cam:
Todd's 98 SS 425 rwhp 392 rwtq with Hellion cam and stock heads , Todd's best 1/4 time NA is 11.95 @ 120.95 with street tires tuned by Mike @ New Era
Todd's 98 SS 425 rwhp 392 rwtq with Hellion cam and stock heads , Todd's best 1/4 time NA is 11.95 @ 120.95 with street tires tuned by Mike @ New Era
06-14-2007, 11:12 PM
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What would be the difference between the stock compression ratio of 10.1:1 to going to a 10.75:1? It doesn't seem like a big change.
This is taken from Texas Speed's site:
"Smaller Combustion Chambers For 10.75:1 Compression"
This is taken from Texas Speed's site:
"Smaller Combustion Chambers For 10.75:1 Compression"
06-15-2007, 01:22 AM
#28
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Originally Posted by chae
What would be the difference between the stock compression ratio of 10.1:1 to going to a 10.75:1? It doesn't seem like a big change.
This is taken from Texas Speed's site:
"Smaller Combustion Chambers For 10.75:1 Compression"
This is taken from Texas Speed's site:
"Smaller Combustion Chambers For 10.75:1 Compression"
From experience you will be far better of with a real good set of 5.7 heads, you get what you pay for.
These cheap heads are just that.
06-15-2007, 06:29 AM
#29
Go with MS3 and the PRC 5.3 Heads this combo is the best combo or go with
Torquer 3.
T-rex ,MS4 and the Hellion Great cams but you need to flycut the pistons with 5.3 heads cuz the 63cc
I would talk to Jason or Trevor at TSP they will help you alot.
Torquer 3.
T-rex ,MS4 and the Hellion Great cams but you need to flycut the pistons with 5.3 heads cuz the 63cc
I would talk to Jason or Trevor at TSP they will help you alot.
06-15-2007, 07:01 AM
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Originally Posted by venom ws7
Go with MS3 and the PRC 5.3 Heads this combo is the best combo or go with
Torquer 3.
T-rex ,MS4 and the Hellion Great cams but you need to flycut the pistons with 5.3 heads cuz the 63cc
I would talk to Jason or Trevor at TSP they will help you alot.
Torquer 3.
T-rex ,MS4 and the Hellion Great cams but you need to flycut the pistons with 5.3 heads cuz the 63cc
I would talk to Jason or Trevor at TSP they will help you alot.
06-15-2007, 07:11 AM
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Originally Posted by ls1 1990 VN
What ever you do, check first the chamber size, whether the heads are port matched to your LS6 intake etc.
From experience you will be far better of with a real good set of 5.7 heads, you get what you pay for. These cheap heads are just that.
From experience you will be far better of with a real good set of 5.7 heads, you get what you pay for.
These cheap heads are just that.
. I remember a few years back that everyone highly recommended Air Flow Research (AFR) heads. They are around $2300-2400 as well. Thanks for the help.P.S. Someone local is running LS6 heads. Not sure if this is what you're referring to? Stage 2.5 LS6 heads from Texas Speed run a little higher at $1450. These have similar flow numbers to the 5.3L stage 2.5 heads. Then there is also the 200cc terminator heads from Texas Speed which start at $1675 and go up to $1900 depending on what springs you order them with. I would still like to see dyno numbers/graphs and track times from some of these heads/cam combinations. Thanks guys.
06-15-2007, 07:27 AM
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Speed Inc. has Patriot Stage 3 LS6 Heads for $1300.
http://www.ls1speed.com/catagory.cfm...in%20/%20Heads
http://www.ls1speed.com/catagory.cfm...in%20/%20Heads
06-15-2007, 07:28 AM
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The PRC 5.3 Stage 2.5 heads from TSP are proven performers. Sure, you can buy a better head, but the solid gains they've been showing (just search the dyno forum) and the low price makes them a great bang for the buck set of heads.
If they wouldn't have been on back order when I had to do my heads, I'd be running the PRC 5.3 Stage 2.5's right now.
If they wouldn't have been on back order when I had to do my heads, I'd be running the PRC 5.3 Stage 2.5's right now.
06-15-2007, 09:10 AM
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I run the stage 2.5 5.3l heads with a tr224/112cam ,ported fast 90/90 and put down 417rwhp 407rwt in an A4. When i was just cammed with a ls6intake i put down 350rwhp.I gained 67rwhp with those heads and a ported fast with my A4.I dont have track numbers yet though,but hope this gives you an Idea of what to expect
06-15-2007, 11:16 AM
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Originally Posted by john563
I run the stage 2.5 5.3l heads with a tr224/112cam ,ported fast 90/90 and put down 417rwhp 407rwt in an A4. When i was just cammed with a ls6intake i put down 350rwhp.I gained 67rwhp with those heads and a ported fast with my A4.I dont have track numbers yet though,but hope this gives you an Idea of what to expect
I will most likely be running a larger cam in the neighborhood of 230+/230+ so I will hopefully see mid-400rwhp/rwt 
06-15-2007, 06:04 PM
#37
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Originally Posted by chae
What would you suggest? Someone recommended Total Engine Airflow (TEA) Trick Flow heads, but they start at $2400 instead of $1200. That's double the price . I remember a few years back that everyone highly recommended Air Flow Research (AFR) heads. They are around $2300-2400 as well. Thanks for the help.
P.S. Someone local is running LS6 heads. Not sure if this is what you're referring to? Stage 2.5 LS6 heads from Texas Speed run a little higher at $1450. These have similar flow numbers to the 5.3L stage 2.5 heads. Then there is also the 200cc terminator heads from Texas Speed which start at $1675 and go up to $1900 depending on what springs you order them with. I would still like to see dyno numbers/graphs and track times from some of these heads/cam combinations. Thanks guys.
. I remember a few years back that everyone highly recommended Air Flow Research (AFR) heads. They are around $2300-2400 as well. Thanks for the help.P.S. Someone local is running LS6 heads. Not sure if this is what you're referring to? Stage 2.5 LS6 heads from Texas Speed run a little higher at $1450. These have similar flow numbers to the 5.3L stage 2.5 heads. Then there is also the 200cc terminator heads from Texas Speed which start at $1675 and go up to $1900 depending on what springs you order them with. I would still like to see dyno numbers/graphs and track times from some of these heads/cam combinations. Thanks guys.
AFR,s Patriot, TEA
06-15-2007, 11:58 PM
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Originally Posted by ls1 1990 VN
All these heads will give you power gains, some are just that much better re the price tag, old adage,you get what you pay for.
AFR,s Patriot, TEA
AFR,s Patriot, TEA
06-16-2007, 11:22 AM
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Originally Posted by voda1
Anyone have the flow numbers for the 2.5 5.3l heads? I've seen the intake numbers on their web sit. Interested in the .200 intake number and exhaust numbers.