Texas Speed LS3 Head porting
Thread Starter
Racer
Joined: Jun 2018
Posts: 296
Likes: 87
Texas Speed LS3 Head porting
Texas speed offers their cnc porting services for the LS3 head and I am wondering if any owners can chime in on their power/tq gains going this route? Or other vendors? Looking for suggestion as I'm a few months away from diving into everything.
Other options I have looked at
GPI porting service
GM CNC ported Heads from Submit racing
08 LS3 M6 NPP car.
Current Mod list
Halltech MF103
TSP 1 7/8th LTH
3 inch catless X-pipe
Vmax Ported Throttle Body
Dyno Tuned
Plans for this spring
Spinmonster 230/234 .615 .600 114+2 Cam
BTR Springs/Pushrods
Johnson 2100 Lifters
Texas Speed Ported LS3 heads
Looking to make between 500-530 whp and 450+ wtq
Thanks!
Other options I have looked at
GPI porting service
GM CNC ported Heads from Submit racing
08 LS3 M6 NPP car.
Current Mod list
Halltech MF103
TSP 1 7/8th LTH
3 inch catless X-pipe
Vmax Ported Throttle Body
Dyno Tuned
Plans for this spring
Spinmonster 230/234 .615 .600 114+2 Cam
BTR Springs/Pushrods
Johnson 2100 Lifters
Texas Speed Ported LS3 heads
Looking to make between 500-530 whp and 450+ wtq
Thanks!
Last edited by bigron1212; Jan 27, 2020 at 04:15 PM.
Melting Slicks
Joined: Jun 2006
Posts: 2,497
Likes: 261
From: Miami Florida
Texas speed offers their cnc porting services for the LS3 head and I am wondering if any owners can chime in on their power/tq gains going this route? Or other vendors? Looking for suggestion as I'm a few months away from diving into everything.
Other options I have looked at
GPI porting service
GM CNC ported Heads from Submit racing
08 LS3 M6 NPP car.
Current Mod list
Halltech MF103
TSP 1 7/8th LTH
3 inch catless X-pipe
Vmax Ported Throttle Body
Dyno Tuned
Plans for this spring
Spinmonster 230/234 .615 .600 114+2 Cam
BTR Springs/Pushrods
Johnson 2100 Lifters
Texas Speed Ported LS3 heads
Looking to make between 500-530 whp and 450+ wtq
Thanks!
Other options I have looked at
GPI porting service
GM CNC ported Heads from Submit racing
08 LS3 M6 NPP car.
Current Mod list
Halltech MF103
TSP 1 7/8th LTH
3 inch catless X-pipe
Vmax Ported Throttle Body
Dyno Tuned
Plans for this spring
Spinmonster 230/234 .615 .600 114+2 Cam
BTR Springs/Pushrods
Johnson 2100 Lifters
Texas Speed Ported LS3 heads
Looking to make between 500-530 whp and 450+ wtq
Thanks!
Drifting
Joined: Mar 2018
Posts: 1,362
Likes: 400
From: DFW TX
Texas speed offers their cnc porting services for the LS3 head and I am wondering if any owners can chime in on their power/tq gains going this route? Or other vendors? Looking for suggestion as I'm a few months away from diving into everything.
Other options I have looked at
GPI porting service
GM CNC ported Heads from Submit racing
08 LS3 M6 NPP car.
Current Mod list
Halltech MF103
TSP 1 7/8th LTH
3 inch catless X-pipe
Vmax Ported Throttle Body
Dyno Tuned
Plans for this spring
Spinmonster 230/234 .615 .600 114+2 Cam
BTR Springs/Pushrods
Johnson 2100 Lifters
Texas Speed Ported LS3 heads
Looking to make between 500-530 whp and 450+ wtq
Thanks!
Other options I have looked at
GPI porting service
GM CNC ported Heads from Submit racing
08 LS3 M6 NPP car.
Current Mod list
Halltech MF103
TSP 1 7/8th LTH
3 inch catless X-pipe
Vmax Ported Throttle Body
Dyno Tuned
Plans for this spring
Spinmonster 230/234 .615 .600 114+2 Cam
BTR Springs/Pushrods
Johnson 2100 Lifters
Texas Speed Ported LS3 heads
Looking to make between 500-530 whp and 450+ wtq
Thanks!
Thread Starter
Racer
Joined: Jun 2018
Posts: 296
Likes: 87
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Here's what I did with their heads. https://www.corvetteforum.com/forums...cam-build.html
It's been over a year now and it's still an absolute blast to drive. Powerful with perfect manners and excellent fuel eco too. I've done more than a few LS builds over the years. Both supercharged and N/A. Looking back, there seems to always be something I would have done differently on those earlier builds...hind sight being 20-20. Wouldn't change a thing on this one though. Got it right.
It's been over a year now and it's still an absolute blast to drive. Powerful with perfect manners and excellent fuel eco too. I've done more than a few LS builds over the years. Both supercharged and N/A. Looking back, there seems to always be something I would have done differently on those earlier builds...hind sight being 20-20. Wouldn't change a thing on this one though. Got it right.
Racer
Joined: Jan 2015
Posts: 375
Likes: 31
From: San Antonio TX
My major mods were:
Lingenfelter GT1-1 cam.....229*/242*, 114* + 0*, .668"/.668" lift with 1.8 rockers.
GPI radius rod LS3 Intake
1 7/8" LT Headers with Magnaflo cats
2 1/2" DynoMax Cat Back
3200 Stall Circle-D torque converter and a built 4L60e transmission
I now have the 260cc TSP Precision Components Heads which were good for an additional peak power of about 17hp and 23tq to the wheels. But....the new heads were worth about 25hp from 3500 to 5500 RPMs.....which is VERY noticeable.
On a tight budget, I'd recommend TSP ported LS3 heads....on a liberal budget, I'd recommend the TSP 260 heads, the AFR Mongoose heads or (if your budget is REALLY loose) the Frankenstein F310 heads.
KW
Last edited by KW Baraka; Jan 30, 2020 at 12:35 PM.
Former Vendor
Joined: Feb 2012
Posts: 26,512
Likes: 351
From: ST. CHARLES IL
We've run the TSP ported LS3 heads on a bunch of builds over here and they always come out great. Good power numbers and no issues. We have some good pricing on them with free shipping and tons of cam options when you're ready. We also offer intake porting through Jokerz that should be worth another 10-15HP
Thread Starter
Racer
Joined: Jun 2018
Posts: 296
Likes: 87
Thanks for all the replies everyone!
I have a follow on question, generally after doing work like this to a SBE LS3 (Heads, Cam) should I still run 5w-30 oil or go to a thicker 5w-40 oil like Rotella T6?
I have a follow on question, generally after doing work like this to a SBE LS3 (Heads, Cam) should I still run 5w-30 oil or go to a thicker 5w-40 oil like Rotella T6?
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Racer
Joined: Jan 2015
Posts: 375
Likes: 31
From: San Antonio TX
Team Owner
Joined: Jul 2004
Posts: 40,404
Likes: 791
From: Redondo Beach, California
Ever consider a supercharger? A&A. Lots of hp, stock engine...only need to replace the fuel injectors. Stock engine performance and fuel economy below 2000 rpm. I have 580 rwhp with the base 6.2 liter engine. Hp with the LS3 will be a lot more. Should you decide to ever sell your car and think a mod''d engine would hurt resale, iit's easy to convet back to stock if you save all the original parts.
Last edited by 68/70Vette; Feb 8, 2020 at 05:44 PM.