Best heads? - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums

Welcome to LS1LT1.com/LS3forums.com - please click here to register...

Reply
 
LinkBack Thread Tools
post #1 of 25 (permalink) Old 05-24-2011, 08:11 AM Thread Starter
Regular Member
 
Join Date: Jul 2010
Location: fort luaderdale fla.
Posts: 59
 
Best heads?

hey i was wondering what are the best heads for a 93 lt1
blkz28 is offline  
Sponsored Links
Advertisement
 
post #2 of 25 (permalink) Old 05-24-2011, 09:02 AM
Administrator
 
Transamman25's Avatar
 
Join Date: Dec 2005
Location: Memphis , Tennessee
Posts: 10,230
 
depends what are you wanting to do with the car ?

Transamman25 is offline  
post #3 of 25 (permalink) Old 05-24-2011, 09:09 AM Thread Starter
Regular Member
 
Join Date: Jul 2010
Location: fort luaderdale fla.
Posts: 59
 
im doing a 383 stroker
blkz28 is offline  
post #4 of 25 (permalink) Old 05-24-2011, 09:11 AM
Regular Member
 
Mystery Bird's Avatar
 
Join Date: Apr 2010
Location: Western MA
Posts: 4,305
 
Also, depends on how much you want to spend. If money is no object buy some AFR's and send them out to be ported.

http://www.youtube.com/user/MysteryBird1?feature=watch
1995 TA: Converted Nose...381 LT1...4L80E...12 bolt...3.90 Gears...4000 TC
Best 1/4 10.78@ 124, 1.46 60ft, 3450lbs.
Mystery Bird is offline  
post #5 of 25 (permalink) Old 05-24-2011, 09:18 AM Thread Starter
Regular Member
 
Join Date: Jul 2010
Location: fort luaderdale fla.
Posts: 59
 
well the shop that is building it got some patroit heads for it and said they finished and they called me back and telling me the heads are not goin work like they said would and now want me to get another 350(vortex os some bs) and put everything in it so im and the motor has been with them for 4 months and they have just been sitting on it so im goin to pull it out and finish it my self.
blkz28 is offline  
post #6 of 25 (permalink) Old 05-24-2011, 09:20 AM
Administrator
 
Transamman25's Avatar
 
Join Date: Dec 2005
Location: Memphis , Tennessee
Posts: 10,230
 
The AFR 227's are the best flowing head on the market untouched, however they are built for more of a supercharged/turbo charged application. If your just doing a 383 naturally aspirated you could easily get away with AFR 210's, auto or manual car ?

Transamman25 is offline  
post #7 of 25 (permalink) Old 05-24-2011, 09:21 AM Thread Starter
Regular Member
 
Join Date: Jul 2010
Location: fort luaderdale fla.
Posts: 59
 
its auto and i was planing on doin a 150 shot
blkz28 is offline  
post #8 of 25 (permalink) Old 05-24-2011, 09:26 AM
Administrator
 
Transamman25's Avatar
 
Join Date: Dec 2005
Location: Memphis , Tennessee
Posts: 10,230
 
Yeah AFR 210's would be just fine for your application, although to get anything from them you really need a bigger cam, I would suggest something with a split duration for Nitrous.

Transamman25 is offline  
post #9 of 25 (permalink) Old 05-24-2011, 09:30 AM
Administrator
 
Transamman25's Avatar
 
Join Date: Dec 2005
Location: Memphis , Tennessee
Posts: 10,230
 
Here is trick flows offering, a little small but says it'll make 430hp

Trick Flow® 430 HP GenX® Top-End Engine Kits for GM LT1 - SummitRacing.com

Transamman25 is offline  
post #10 of 25 (permalink) Old 05-24-2011, 09:34 AM
Administrator
 
Transamman25's Avatar
 
Join Date: Dec 2005
Location: Memphis , Tennessee
Posts: 10,230
 
Transamman25 is offline  
post #11 of 25 (permalink) Old 05-24-2011, 12:42 PM Thread Starter
Regular Member
 
Join Date: Jul 2010
Location: fort luaderdale fla.
Posts: 59
 
is that trick flow kit good do i need to get the heads ports and thanks for all the help
blkz28 is offline  
post #12 of 25 (permalink) Old 05-24-2011, 01:54 PM
Administrator
 
Transamman25's Avatar
 
Join Date: Dec 2005
Location: Memphis , Tennessee
Posts: 10,230
 
The trick flow kit is fine as long as 430hp at the flywheel is enough for you, If you want anymore than that you will need a better head. And no you don't have to port anything you buy.

Transamman25 is offline  
post #13 of 25 (permalink) Old 05-24-2011, 02:50 PM Thread Starter
Regular Member
 
Join Date: Jul 2010
Location: fort luaderdale fla.
Posts: 59
 
ok thanks for all the help again and be fore i order it the 150 shot is safe on that kit

Last edited by blkz28; 05-24-2011 at 03:04 PM.
blkz28 is offline  
post #14 of 25 (permalink) Old 05-24-2011, 04:46 PM
Regular Member
 
94nismoformula's Avatar
 
Join Date: Mar 2010
Location: Louisville KY
Posts: 64
 
id be more worried about your bottom end. dont want to spin a bearing or anything

1994 Firebird Formula- Stock LT1, No trans- T56 Swap in progress, Moser Ford 9inch 3.70s, Chromoly Driveshaft, BMR UCA/LCAs, K&N Intake, Trickflow Intake Elbow, A/C Delete, and Corbeau Forza Seats
1998 Bonneville SE- for sale.
94nismoformula is offline  
post #15 of 25 (permalink) Old 05-24-2011, 05:44 PM
Regular Member
 
Viper's Avatar
 
Join Date: Jul 2010
Location: New Mexico
Posts: 1,052
 
The Patriot heads were designed for standard old style small block chevy cooling system
the LT1 has reverse flow cooling.

LT1 History

Early heads Lt1 Casting 374 last 3 digits have more meat for porting used 92-95

Later LT1 Heads have slightly better flowing exhaust ports castings 561 harder to locate.

The 96-97 Late model LT1 heads also flow slightly better than the early ones casting 648.

The cast Iron 96 Impalla SS heads were the best flowing LT1 Heads flow approximately 20cfm better than the aluminum heads and weigh 40lbs more per pair.

For racing heres some comparisons of head flow rates:

Total Engine Airflow & Trick Flow LT1 Cylinder Heads | GM High-Tech Performance Magazine Article at Automotive.com

Last edited by Viper; 02-14-2013 at 09:49 PM.
Viper is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome