Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV Internal Engine
Sign in using an external account
Register Forgot Password?
Search

Generation IV Internal Engine
2005-2014 LS2 | LS3 | LS7 | L92 | LS9
Sponsored by
ERL Performance

Reply
 
Thread Tools Search this Thread
Old 12-10-2010, 06:04 PM   #1
LS1Tech Sponsor
Garage is empty, add now
 
Brian Tooley's Avatar
 
Trader Rating: 12
Join Date: Oct 2002
Location: Bardstown, KY
Posts: 1,770
Default Hot Rod tested 8 ported LS3/L92 heads!

Did anyone see the article in Hot Rod where they tested 6 different ported OEM heads, a Pro Comp head and a Mast head?

In the test was OEM ported heads by LPE, WCCH, SDPC, TEA, Pro Comp, GMPP. There were also aftermarket castings by Pro Comp and Mast.

All tested on a 466 with a PI carb intake, pump gas, hyd roller cam, peak power was 762 hp, the Mast heads were the hands down winner, but also have 12 degree valve angles and 1.8 rockers, as opposed to 15 degree with 1.7 rockers.

It's a good read, check it out.
__________________
Brian Tooley is online now   Reply With Quote
Old 12-10-2010, 06:31 PM   #2
10 Second Club
Garage is empty, add now
 
DrkPhx's Avatar
 
Trader Rating: 15
Join Date: Nov 2001
Location: St. Michael, MN.
Posts: 4,512
Default

Sounds interesting. Did that just come out?
__________________
06 Trailblazer AWD SS ---------13 Camaro ZL1 M6---
---- ---13.78/98.99-----------------535/513 rwhp/tq bone stock
DrkPhx is offline   Reply With Quote
Old 12-10-2010, 06:42 PM   #3
Tin Foil Hat Wearin' Fool
Garage is empty, add now
 
1slow01Z71's Avatar
 
Trader Rating: 36
Join Date: Oct 2004
Location: Austin, TX
Posts: 23,027
Send a message via MSN to 1slow01Z71
Default

Wonder why PRC wasnt in the game... Id like to see the article and how they all compare.
1slow01Z71 is offline   Reply With Quote
Old 12-10-2010, 06:48 PM   #4
10 Second Club
2000 Chevrolet Camaro
 
11SECSS's Avatar
 
Trader Rating: 178
Join Date: Nov 2001
Location: Hampton Va
Posts: 1,435
Default

Yes its the FEB 2011 issue. On a side note it was a 468 ci w/12.2 to 1 comp and a comp cam >> 255/271 deg with .624 lift on 115 lsa .It also made 732 with a /FAST 102 intake .
The article also showed where the factory balancer came apart while they where testing at 7,000 rpm.
__________________
2000 SS #5371 Sebring Silver A4 best times>> SI parts11.256@118.83 1.49 /3-10-2012
ECS cam //Eibach Springs // YANK SS 4000//LS6 intake//1 7/8 KOOKS //Bogarts//Griffin RAD
BMR k member & lower A-arms// stock 10 bolt w/3.42//stock M6 T/A//SLP SFC's

D1SC w FMIC 8lbs 476 rwhp still working out the bugs
11SECSS is offline   Reply With Quote
Old 12-10-2010, 09:41 PM   #5
LS1Tech Sponsor
Garage is empty, add now
 
Brian Tooley's Avatar
 
Trader Rating: 12
Join Date: Oct 2002
Location: Bardstown, KY
Posts: 1,770
Default

Quote:
Originally Posted by 11SECSS View Post
it was a 468 ci
Sorry, yes, 468, 4.185" bore x 4.25" stroke

The spread between the best and worst of the ported OEM heads was 8 hp, or about 1%, that seems close to the repeatability of the dyno to me.
__________________
Brian Tooley is online now   Reply With Quote
Old 12-11-2010, 03:34 AM   #6
LS1Tech Sponsor
Garage is empty, add now
 
AES Racing's Avatar
 
Trader Rating: 6
Join Date: Feb 2010
Location: Elk Grove Village IL
Posts: 900
Default

Read the last Hot Rod article about the cathedral port heads on 408, good comparison.
__________________
AES Racing Engines
email: aesracing@sbcglobal.net
phone: 847-956-1244
Tour our shop (click here)
AES Racing is online now   Reply With Quote
Old 12-11-2010, 11:54 AM   #7
TECH Regular
Garage is empty, add now
 
ramairroughneck's Avatar
 
Trader Rating: 35
Join Date: Jan 2007
Location: Atoka,OK
Posts: 459
Default

I found the first comparison to be a bust. With the 408 restricted by the fast there was very little difference in horsepower among the various submisions. The highest performing heads were the couple that had a slightly smaller combustion chamber. However, this go-round HRM upped the ante and tested the heads with a single plane intake. They essentially removed the restricter plate from the motor. This allowed the aftermarket heads to shine over the ported castings. It would have been interesting to have seen how the cathederal heads performed with a supervictor. Likewise, I would guess that the ported LS3's would have performed closer to the Mast heads had they all been tested with the Fast 102 this time.
__________________
Black WS6 Sold
Hugger Orange Camaro
DSOM C6 Z06

Last edited by ramairroughneck; 12-11-2010 at 12:49 PM..
ramairroughneck is offline   Reply With Quote
Old 12-11-2010, 12:09 PM   #8
TECH Resident
Garage is empty, add now
 
Trader Rating: 125
Join Date: Jan 2003
Posts: 904
Default

anyone have a link to the hotrod ls3 head test?
__________________
http://www.bmrfabrication.com
94 guy is offline   Reply With Quote
Old 12-11-2010, 12:29 PM   #9
TECH Veteran
Garage is empty, add now
 
87silverbullet's Avatar
 
Trader Rating: 11
Join Date: Mar 2007
Location: Slidell,LA
Posts: 4,873
Default

Quote:
Originally Posted by 1slow01Z71 View Post
Wonder why PRC wasnt in the game... Id like to see the article and how they all compare.
+1 on this one, especially sinc I have a set of ported PRC L92's waiting to go on my motor.
__________________
87silverbullet is offline   Reply With Quote
Old 12-11-2010, 03:12 PM   #10
Launching!
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2010
Posts: 252
Default

Quote:
Originally Posted by 1slow01Z71 View Post
Wonder why PRC wasnt in the game... Id like to see the article and how they all compare.
I bet they would be in the 8hp spread.

That being said, go with the most budget head that fits your applications needs.
briancb1 is offline   Reply With Quote
Old 12-11-2010, 04:03 PM   #11
Tin Foil Hat Wearin' Fool
Garage is empty, add now
 
1slow01Z71's Avatar
 
Trader Rating: 36
Join Date: Oct 2004
Location: Austin, TX
Posts: 23,027
Send a message via MSN to 1slow01Z71
Default

As long as Richards heads arent way behind comparable heads Ill always use WCCH for my ported head needs. He has treated me great every time Ive bought something from him, and taken all the time I needed to answer any questions Ive had. Best customer service Ive ever had the pleasure of dealing with.
1slow01Z71 is offline   Reply With Quote
Old 12-11-2010, 04:48 PM   #12
TECH Addict
Garage is empty, add now
 
Trader Rating: 4
Join Date: Oct 2004
Location: Manchester, CT
Posts: 2,063
Default

I can only find the catherdral port head article here http://www.hotrod.com/techarticles/e...est/index.html
__________________
M6 2010 Camaro SS
2005 RCSB 5.3 Z71
Mike454SS is offline   Reply With Quote
Old 12-11-2010, 05:05 PM   #13
TECH Senior Member
1998 Pontiac Trans Am
 
SOMbitch's Avatar
 
Trader Rating: 8
Join Date: Sep 2007
Posts: 6,894
Default

They won't put this online for a little while...
__________________
HKE 403
A4/SS3600 23x/24x 487rwhp/456rwt thru cats
SOMbitch is offline   Reply With Quote
Old 12-11-2010, 08:54 PM   #14
9 Second Club
Garage is empty, add now
 
ramairws6's Avatar
 
Trader Rating: 30
Join Date: Sep 2004
Location: Hicksville MN!
Posts: 1,584
Default

Quote:
Originally Posted by 1slow01Z71 View Post
As long as Richards heads arent way behind comparable heads Ill always use WCCH for my ported head needs. He has treated me great every time Ive bought something from him, and taken all the time I needed to answer any questions Ive had. Best customer service Ive ever had the pleasure of dealing with.
Richard is definately a class act all the way around! My heads won't go to anyone but WCCH......
__________________
2001 Trans Am 9.75 @139mph 1.40 60' 6.0 at 117 mph 1/8 mile High Comp 445 756/666 NA
ramairws6 is offline   Reply With Quote
Old 12-12-2010, 07:10 AM   #15
TECH Junkie
Garage is empty, add now
 
WKMCD's Avatar
 
Trader Rating: 2
Join Date: Mar 2005
Location: Northern VA
Posts: 3,425
Default

Quote:
Originally Posted by ramairws6 View Post
Richard is definately a class act all the way around! My heads won't go to anyone but WCCH......
Good move...
__________________
The Gentleman's Cruiser - Deceased 12/6/2013
Mild 427 - 576RWHP 530RWT WCCH Stage 3 L92's (Still with a very small cam)
Build Thread
http://ls1tech.com/forums/generation...b-c-d-e-f.html
WKMCD is offline   Reply With Quote
Old 12-12-2010, 10:47 AM   #16
Launching!
Garage is empty, add now
 
supermouse4's Avatar
 
Trader Rating: 0
Join Date: Nov 2009
Location: Illinois
Posts: 245
Default

From that article, I didn't think that the two GM production heads would perform that great, sorry for anyone who hasn't seen the article yet.
supermouse4 is offline   Reply With Quote
Old 12-12-2010, 11:47 AM   #17
LS1TECH Sponsor
Garage is empty, add now
 
Jason 98 TA's Avatar
 
Trader Rating: 4
Join Date: Nov 2001
Location: Texas!
Posts: 4,109
Default

Sorry guys we were trying to get the new prc aftermarket casting head there and didn't make it.
__________________
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 98 TA is offline   Reply With Quote
Old 12-12-2010, 11:50 AM   #18
Launching!
Garage is empty, add now
 
Trader Rating: 9
Join Date: Oct 2005
Location: Wichita Falls Texas
Posts: 232
Default

Quote:
Originally Posted by ramairws6 View Post
richard is definately a class act all the way around! My heads won't go to anyone but wcch......
+++1!!!
__________________
Casey Biggs
Biggsw784 is offline   Reply With Quote
Old 12-12-2010, 11:54 AM   #19
Launching!
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2010
Posts: 252
Default

Quote:
Originally Posted by supermouse4 View Post
From that article, I didn't think that the two GM production heads would perform that great, sorry for anyone who hasn't seen the article yet.
Are these your thoughts, or observations?
briancb1 is offline   Reply With Quote
Old 12-12-2010, 12:15 PM   #20
10 Second Club
Garage is empty, add now
 
Fbodyjunkie06's Avatar
 
Trader Rating: 10
Join Date: Mar 2009
Location: Greensboro, NC
Posts: 4,664
Default

I just bought that magazine yesterday. I bought it because on the cover it had "america's hottest engine swap" being the LS series of motors. I didn't even know that they had a comparison like this in there. Guess I have to get to reading!
__________________
Tick Peformance, Nitrous Express, Menscer Motorsports, FTI, Madman Suspension, Holeshot Wheels

6.10@113 1.29 60' Video:http://s1105.photobucket.com/albums/...t=IMG_0411.mp4
Martin Smallwood-Tech/Customer Service/Sales
Tick Performance of Mount Airy, NC - Specializing in GM LSx Performance
336.719.0599
Fbodyjunkie06 is offline   Reply With Quote
Old 12-12-2010, 12:15 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cathedral v.s. Rectangular Port Cylinders - Head To Head lil john Generation IV Internal Engine 77 07-04-2014 07:49 AM
BUNCH of LS7 Z06 build parts... MAST Heads, CAM, FAST 102, ls9 injectors, NW 102, ETC Imperial Parts Classifieds 2 06-27-2014 11:42 PM
Any ProComp Motorsports LS1 head users? 1990LSx Generation III Internal Engine 67 05-22-2014 06:02 AM
HOT ROD head comparison (cathedrial vs square) camz28arro Generation III Internal Engine 72 07-18-2013 08:50 AM
408 LS Part Out - MAST HEADS!! and other parts ATwelveSec02Z28 Parts Classifieds 50 01-06-2013 08:33 PM


Tags
americas, comp, engine, head, heads, hot, hottest, id, l92, ls, ls3, magazine, porting, pro, rod, swap, test


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 01:40 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details