LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Lt1s with Port Pro Heads?

Thread Tools
 
Search this Thread
 
Old May 18, 2006 | 10:45 PM
  #1  
Speed Density's Avatar
Thread Starter
hashtagBMW
iTrader: (38)
 
Joined: Jul 2005
Posts: 6,572
Likes: 2
From: Boise, Idaho
Default Lt1s with Port Pro Heads?

Im looking into getting the Stage 3 Heads.

At this point i really know nothing about picking th right heads, I have less than a month to get parts orderd for my new setup.

What I do know about heads: Lower CC and high flow 3=Good Velocity, I also know how to read flow numbers. And thats it.

Just wondering if any LT1 guys have had any good results N/A with PortPro heads?

Thanks Guys,

Tony.
Reply
Old May 18, 2006 | 11:09 PM
  #2  
BizZzatch350's Avatar
Moderator
20 Year Member
Photogenic
iTrader: (33)
 
Joined: Dec 2001
Posts: 9,794
Likes: 15
From: T E X A S
Default

Fast93Z (Tony) has been using them, I have heard great things about them, the guy who owns Port Pros knows his ****. Best bet is to call them
Reply
Old May 18, 2006 | 11:11 PM
  #3  
Speed Density's Avatar
Thread Starter
hashtagBMW
iTrader: (38)
 
Joined: Jul 2005
Posts: 6,572
Likes: 2
From: Boise, Idaho
Default

Harold is the owner, and yes he is a bad ***. Ive emailed him back and forth a few times.

I know tony has AFR 227cc those really dont compare to Stock castings being ported.
Reply
Old May 19, 2006 | 07:21 AM
  #4  
BigKap94z's Avatar
TECH Enthusiast
iTrader: (47)
 
Joined: Apr 2005
Posts: 721
Likes: 1
Default

I saw this thread and your other thread asking about LE3, AFR's, and Ai's packages. I honestly think you would be happy with any of the above, but I would shy away from AFR's unless you are looking for larger goals that down the road your stock ported castings won't be up to the task. Are you planning on going with an off the shelf cam, or a custom from somebody?
Reply
Old May 19, 2006 | 08:04 AM
  #5  
Tony Shepherd's Avatar
8 Second Club
iTrader: (4)
 
Joined: Oct 2002
Posts: 2,913
Likes: 2
From: Round Rock TX
Default

I tuned a 95 TransAm with a 383 LT1 and stage 3 heads from Port Pros. Only had a CC306 cam and it put down 430rwhp 449 rwtq through an auto unlocked t/c and 12 bolt. I wish he would get a custom grind for those heads and we would really see some #'s.

My old heads were from Port Pros as well. They were stage 2 AFR 190's on my 396 LT1. I had a custom grind hydraulic cam. Car put down 479 rwhp 452 rwtq through a TH400 and 9". This was in 2004 when I ran the 9.85 @ 140 on spray.

His stuff works!!
Reply
Old May 19, 2006 | 10:04 AM
  #6  
Fire67's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Feb 2005
Posts: 1,118
Likes: 0
From: Naples, FL
Default

I just had Harold do a 383 for me with his "Stg 2" heads and a Comp XFI cam. 236-236, .576-.571, 113 lsa
This motor was built for boost, with the intentions of going all the way up to 15psi. The head flow sheets for my Stg 2's show they outshine out of the box AFR 195's w/ 100% porting, and really compare closer to other peoples Stg 3's from Port Pros. In other words, his porting guy went a little over-kill. But Im not complaining.
If your interested, I can email you my flow sheets.
Have not dyno'd the motor yet, as its not completely broken in quite yet. Hell, I havent even gone WOT yet.
I did however do a third gear pull to 4500rpms @ approx. 2/3 throttle. This yeilded me about 2psi of boost at 4500 and it was pulling harder than the stock motor ever did on 10psi @ 6k rpm!
Give Harold a call and tell him Justin Daniels sent you. Also, dont forget to mention LS1tech.com
Reply
Old May 19, 2006 | 06:28 PM
  #7  
solid95z's Avatar
TECH Regular
iTrader: (7)
 
Joined: Jun 2002
Posts: 406
Likes: 0
From: Austin, Tx.
Default

Harold is doing the heads and shortblock for my turbo motor. I wouldn't trust them to anyone else at this point. He's gonna use stock castings (they are already ported, he has to fix some flaws ) then we'll go to trick flows, afr, etc... later.

He did fix a set of stock castings for a friend of mine & Tony's. Those stock castings flowed 287@.600 & over 200 on the exh @ .600 (cant remember for sure).
Reply




All times are GMT -5. The time now is 10:18 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