LS1TECH - Camaro and Firebird Forum Discussion

Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Tsp prc 2.5 LS6 head flow rate?

Thread Tools
 
Search this Thread
 
Old Nov 24, 2016 | 03:13 PM
Share
  #1  
blackfbird98's Avatar
blackfbird98
Thread Starter
TECH Enthusiast
 
Joined: Aug 2006
Posts: 734
Likes: 2
From: Hamlin ny
Default Tsp prc 2.5 LS6 head flow rate?
Hey guys so I have a set of prc 2.5 ls6 heads from tsp that were milled.20 over for my tsp v3 cam, does anyone one know the flow rate on these heads? I'm trying to figure out what the compression rate will be on a stock lq4 block I picked up. Any info is appreciated
Reply
0
Old Nov 25, 2016 | 01:51 PM
Share
  #2  
blackfbird98's Avatar
blackfbird98
Thread Starter
TECH Enthusiast
 
Joined: Aug 2006
Posts: 734
Likes: 2
From: Hamlin ny
Default
Anyone?
Reply
0
Old Nov 25, 2016 | 05:28 PM
Share
  #3  
omc8's Avatar
omc8
TECH Fanatic
15 Year Member
iTrader: (7)
 
Joined: May 2009
Posts: 1,539
Likes: 26
From: columbus,ohio
Default
Originally Posted by blackfbird98
Hey guys so I have a set of prc 2.5 ls6 heads from tsp that were milled.20 over for my tsp v3 cam, does anyone one know the flow rate on these heads? I'm trying to figure out what the compression rate will be on a stock lq4 block I picked up. Any info is appreciated
Here you go.......... The flow data below shows the superior performance of the PRC stage 2.5 LS6 cylinder heads!




Flow Data: 3.910" Flow Plate - No Exhaust Pipe


Lift Intake Flow Exhaust Flow
.200" 147 cfm 114 cfm
.300" 209 cfm 152 cfm
.400" 258 cfm 191 cfm
.500" 294 cfm 207 cfm
.600" 316 cfm 226 cfm
Reply
0
Old Nov 25, 2016 | 08:50 PM
Share
  #4  
BrntWS6's Avatar
BrntWS6
TECH Addict
iTrader: (7)
 
Joined: Feb 2005
Posts: 2,004
Likes: 10
From: Land of the FOID
Default
I have that setup and its 10.6:1 on stock ls1 block. Dont know if that would change with your block or not.
Reply
0
Old Nov 26, 2016 | 03:57 PM
Share
  #5  
blackfbird98's Avatar
blackfbird98
Thread Starter
TECH Enthusiast
 
Joined: Aug 2006
Posts: 734
Likes: 2
From: Hamlin ny
Default
Originally Posted by BrntWS6
I have that setup and its 10.6:1 on stock ls1 block. Dont know if that would change with your block or not.

Any idea on the chamber cc on these heads?
Reply
0
Old Nov 27, 2016 | 09:56 AM
Share
  #6  
BrntWS6's Avatar
BrntWS6
TECH Addict
iTrader: (7)
 
Joined: Feb 2005
Posts: 2,004
Likes: 10
From: Land of the FOID
Default
58-64cc
Reply
0
Old Nov 30, 2016 | 03:40 PM
Share
  #7  
Aaron at SDPC's Avatar
Aaron at SDPC
FormerVendor
 
Joined: Jul 2016
Posts: 432
Likes: 7
Default
Originally Posted by blackfbird98
Any idea on the chamber cc on these heads?
Should be a number engraved in the rocker area. Find that hand engraved number and give them a call. They will be able to look up exactly how those cylinder heads left the building.
Reply
0
Back to Subforum
Generation III External Engine
View Next Unread
Port size for LS1?




Advanced Search

All times are GMT -5. The time now is 08:48 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE