Just starting head porting project

Reply Subscribe

Thread Tools

Search this Thread

May 3, 2005 | 03:00 PM

99blancoSS

Thread Starter

Banned

iTrader: (115)

Joined: Feb 2005

Posts: 9,892

Likes: 3

From: ST Helens, OR

Just starting head porting project

Some early pics, Got bored while waiting for the porting kit to arrive so I started a little with the dremel...

Attached Thumbnails

Just starting head porting project-1getting-started.jpg

Just starting head porting project-tool.jpg

May 3, 2005 | 03:11 PM

Bo White

TECH Addict

iTrader: (59)

Joined: Oct 2004

Posts: 2,357

Likes: 0

From: Vance, Alabama

Wait on the kit and then start slingin aluminum chips

May 4, 2005 | 02:50 PM

99blancoSS

Thread Starter

Banned

iTrader: (115)

Joined: Feb 2005

Posts: 9,892

Likes: 3

From: ST Helens, OR

Do you take that bump out of the exaust by the header side in front of the valve guide a few cm's? Also how big do you make the intake runners? how wide?

May 4, 2005 | 02:55 PM

Bo White

TECH Addict

iTrader: (59)

Joined: Oct 2004

Posts: 2,357

Likes: 0

From: Vance, Alabama

Be careful on the small bump in the roof of the exhaust port. That is there for water jacket clearance so only blend it into the roof:

Attached Thumbnails

Just starting head porting project-exhaust-cutaway.jpg

May 4, 2005 | 03:00 PM

Cal

TECH Veteran

iTrader: (1)

Joined: Feb 2003

Posts: 4,691

Likes: 3

From: Northern Utah

That cut-away view is very useful . . . makes it easy to visualize what needs to be done. You're a nice guy for sharing, Bo!

May 4, 2005 | 03:11 PM

99blancoSS

Thread Starter

Banned

iTrader: (115)

Joined: Feb 2005

Posts: 9,892

Likes: 3

From: ST Helens, OR

Quote:

Originally Posted by Bo White

Be careful on the small bump in the roof of the exhaust port. That is there for water jacket clearance so only blend it into the roof:

Sweet, thx Bo

May 4, 2005 | 06:27 PM

Bill Bowling

TECH Addict

iTrader: (6)

Joined: Apr 2003

Posts: 2,597

Likes: 4

From: Lawrenceville, GA

Quote:

Originally Posted by 99blancoSS

Some early pics, Got bored while waiting for the porting kit to arrive so I started a little with the dremel...

Where did you get your porting kit? I was thinking I might do a port job. I use to do them on motorcycles but not a LS1. Do you have a write up on where to remove and how much?

Thanks.

Bill

Trending Topics

60-130 Dragy runs?

24

538
FI Tech engine management system.......anyone use it?

12

166
LS3 will not run

21

502
Car covers

11

680
Accessories for LS swapped 67 Firebird

5

203

May 4, 2005 | 07:37 PM

gollum

TECH Fanatic

iTrader: (1)

Joined: Jul 2004

Posts: 1,467

Likes: 9

4.00" STROKER (383) with STOCK HEADS.

I think our stock LS1 heads flow enough air as is. Ultimatly all we need is a 4.00" crankshaft. My 347 makes good power and will rev very easily to 7000 with just a cam (224/228 112lsa, 108cl) and headers. What our cars need more of is "midrange torque" for acceleration. So while my engine is apart I will just clean up and smooth area under the valves and perform a good quality valve job. I will put off buying higher flowing heads for now and take advantage of the midrange torque the 4.00" kit will give me.